Smartlet Eins
Smartlet Eins
Ein Konzept. Drei verschiedene Persönlichkeiten.
Wear a Smartwatch with Your Formex | Smartlet
Brand compatibility guide
Formex
Wear a smartwatch
with your Formex
Smartlet One is compatible with all Formex Essence and Element references using 20mm to 22mm lug widths, natively supported with no adapter. Installation uses the standard spring-bar system - no modification to the watch, fully reversible in seconds.
Formex built a suspended movement system - four springs isolate the calibre from the case, absorbing shock before it reaches the movement. It is an engineering choice that costs more to produce and results in a measurably more accurate watch under daily wear. Formex owners chose on merit. Smartlet One approaches compatibility the same way: no adapter, no modification, standard spring bars, reversible in seconds.
584+References
18mm / 20mm / 22mmLug widths
18mm→24mmSmartlet range
So funktioniert es
Three steps to both watches on one wrist
01
Choose your strap
Smartlet One is your new strap. It replaces the original bracelet or strap on your Rolex using the same spring-bar system. Lug widths 20mm / 21mm are all natively supported.
02
Clip in your watch
Attach the Smartlet strap to your Rolex by fitting the spring bars into the lugs, exactly as with any standard strap change. No tools required. Fully reversible in seconds.
03
Clip in your smartwatch
Slide your smartwatch into the Smartlet module. It locks onto the strap module on the wrist side of your wrist. All sensors remain fully operational. Both watches run simultaneously.
Model guides
Formex iconic models
Each guide covers all references, variants, lug widths, and step-by-step Smartlet installation for one specific model line.
Full database
Other Formex references
522 references grouped into 16 model families. All compatible. Expand any group to see variants, references, and specifications.
Active
Reference
Material
Dial
Lug
Smartlet
AS300-TI-2003
Titanium
Grey
22mm
Compatible
AS400-TI-2004
Titanium
Grey
22mm
Compatible
AS100-2000
Steel
Black
22mm
Compatible
AS200-2001
Steel/Suspension Frame
Silver
22mm
Compatible
AS300-2002-CARB
Carbon/Steel
Black
22mm
Compatible
AS450-CARB-2005
Carbon/Grey
Black
22mm
Compatible
Atelier
Reference
Material
Dial
Lug
Smartlet
UNQ-FMX-REB
White Gold
Blue Enamel
22mm
Compatible
UNQ-FMX-JD
Yellow Gold
Jade
22mm
Compatible
UNQ-FX-CH-EMR01
White Gold
Emerald
22mm
Compatible
UNQ-FX-BLEN
White Gold
Blue Enamel
20mm
Compatible
UNQ-FX-ES-JD01
White Gold
Jade
20mm
Compatible
UNQ-FX-RE-DRG01
Yellow Gold
Engraved Dragon
22mm
Compatible
UNQ-FMX-FDZ
Bronze
Brown
22mm
Compatible
UNQ-FMX-ENAM-BLK-2024
White Gold
Black Enamel Wave
20mm
Compatible
UNQ-FMX-ENAM-BLUE-2024
White Gold
Blue Enamel
20mm
Compatible
UNQ-FMX-SILDRG-2024
White Gold
Hand-Engraved Silver Dragon
20mm
Compatible
UNQ-FMX-METEOR-BLU-2025
White Gold
Blue Meteorite
20mm
Compatible
UNQ-FMX-DAMAS-2024
Damascus Titanium
Grey Patterned
22mm
Compatible
UNQ-FMX-CFROST-2024
Forged Carbon
Frost Grey
22mm
Compatible
UNQ-FMX-CARBW-2024
Forged Carbon
Black Wave
22mm
Compatible
UNQ-FX-FLD-MET01
Steel
Meteorite
20mm
Compatible
UNQ-FX-DAM-GRN
Damascus Steel
Green
22mm
Compatible
UNQ-FMX-RGL
Platinum
Ice Blue
22mm
Compatible
UNQ-FX-RED
Rose Gold
Red Enamel
22mm
Compatible
UNQ-FMX-SRR
Rose Gold
Ruby Meteorite
22mm
Compatible
UNQ-FMX-MET
Rose Gold
Meteorite
22mm
Compatible
UNQ-FX-RE-SAP01
Sapphire
Transparent Diver
22mm
Compatible
UNQ-FMX-SAP
Sapphire
Transparent
22mm
Compatible
UNQ-FX-ES-SKS01
Sapphire
Skeleton
20mm
Compatible
UNQ-FX-RE-RUB01
Rose Gold
Ruby
22mm
Compatible
UNQ-FMX-GOLD-SKEL-2025
Red Gold
Skeleton Engraved
22mm
Compatible
UNQ-FMX-LAVA-2025
Red Gold
Lava Enamel
22mm
Compatible
Chronograph
Reference
Material
Dial
Lug
Smartlet
Chronograph Black
CH-45-BK01
Steel
Black
22mm
Compatible
Chronograph Blue
CH-45-BL01
Steel
Blue
22mm
Compatible
Chronograph Burgundy
CH-45-BG01
Steel
Burgundy
22mm
Compatible
Chronograph Cobalt
CH-45-CB01
Steel
Cobalt
22mm
Compatible
Chronograph Gold
PCH-45-GL01
Rose Gold
Blue
22mm
Compatible
Chronograph Green
CH-45-GN01
Steel
Green
22mm
Compatible
Chronograph Grey
CH-45-GR01
Steel
Grey
22mm
Compatible
Chronograph Ice
CH-45-IB01
Steel
Ice Blue
22mm
Compatible
Chronograph Modern
FX-CHM-BK01
Steel
Black
22mm
Compatible
FX-CHM-BL01
Steel
Blue
22mm
Compatible
FX-CHM-GN01
Steel
Green
22mm
Compatible
FX-CHM-GR01
Steel
Grey
22mm
Compatible
FX-CHM-BR01
Steel
Brown
22mm
Compatible
FX-CHM-IB01
Steel
Ice Blue
22mm
Compatible
FX-CHM-CB01
Steel
Cobalt
22mm
Compatible
FX-CHM-PP01
Steel
Purple
22mm
Compatible
FX-CHM-RD01
Steel
Red
22mm
Compatible
FX-CHM-SD01
Steel
Sand
22mm
Compatible
Chronograph Motorsport
FX-CHMS-BK01
Steel
Black
22mm
Compatible
FX-CHMS-BL01
Steel
Blue
22mm
Compatible
FX-CHMS-GN01
Steel
Green
22mm
Compatible
FX-CHMS-GR01
Steel
Grey
22mm
Compatible
FX-CHMS-BR01
Steel
Brown
22mm
Compatible
FX-CHMS-IB01
Steel
Ice Blue
22mm
Compatible
FX-CHMS-CB01
Steel
Cobalt
22mm
Compatible
FX-CHMS-PP01
Steel
Purple
22mm
Compatible
FX-CHMS-RD01
Steel
Red
22mm
Compatible
FX-CHMS-SD01
Steel
Sand
22mm
Compatible
Chronograph Purple
CH-45-PP01
Steel
Purple
22mm
Compatible
Chronograph Sand
CH-45-SD01
Steel
Sand
22mm
Compatible
Diver
Reference
Material
Dial
Lug
Smartlet
FX-DIV500-BK01
Steel
Black
22mm
Compatible
FX-DIV500-BL01
Steel
Blue
22mm
Compatible
FX-DIV500-GN01
Steel
Green
22mm
Compatible
FX-DIV500-GR01
Steel
Grey
22mm
Compatible
FX-DIV500-BR01
Steel
Brown
22mm
Compatible
FX-DIV500-IB01
Steel
Ice Blue
22mm
Compatible
FX-DIV500-CB01
Steel
Cobalt
22mm
Compatible
FX-DIV500-PP01
Steel
Purple
22mm
Compatible
FX-DIV500-RD01
Steel
Red
22mm
Compatible
FX-DIV500-SD01
Steel
Sand
22mm
Compatible
Essence
Reference
Material
Dial
Lug
Smartlet
Essence 39
0330.1.6620.100
Stainless Steel
Blue
20mm
Compatible
0330.1.6220.100
Steel
Black
20mm
Compatible
0330.1.6020.100
Steel
White
20mm
Compatible
0330.1.C24.100
Steel
Blue/Silver
20mm
Compatible
0330.1.C24.200
Steel
Green
20mm
Compatible
0330.1.C24.300
Steel
Brown
20mm
Compatible
0330.1.C24.400
Steel
Yellow
20mm
Compatible
0330.1.6320.100
Steel
Copper
20mm
Compatible
0330.1.6420.100
Steel
Green
20mm
Compatible
0330.1.C24.500
Steel
Purple
20mm
Compatible
0330.1.6120.100
Steel
Grey
20mm
Compatible
0330.1.6720.100
Steel
Purple
20mm
Compatible
0330.1.6820.100
Steel
Turquoise
20mm
Compatible
0330.1.6620.200
Steel
Blue Gradient
20mm
Compatible
0330.1.6920.100
Steel
Salmon
20mm
Compatible
FX-ES39-BL01
Stainless Steel
Blue
20mm
Compatible
FX-ES39-GR01
Stainless Steel
Grey
20mm
Compatible
FX-ES39-GD01
Stainless Steel
Dégradé Grey
20mm
Compatible
FX-ES39-WH01
Stainless Steel
White
20mm
Compatible
FX-ES39-BK01
Stainless Steel
Black
20mm
Compatible
FX-ES39-GN01
Stainless Steel
Green
20mm
Compatible
Essence 41
ESS41-MET-BLU-2023
Stainless Steel
Blue Meteorite
20mm
Compatible
ESS41-MET-GRY-2023
Stainless Steel
Grey Meteorite
20mm
Compatible
ESS41-COPGRAD-2024
Stainless Steel
Copper Gradient
20mm
Compatible
ESS41-TEAL-2024
Stainless Steel
Teal Gradient
20mm
Compatible
ESS41-LILAC-2024
Steel
Lilac
20mm
Compatible
FX-ES41-WH01
Stainless Steel
White
20mm
Compatible
FX-ES41-GM01
Stainless Steel
Gamaret (Wine-Red)
20mm
Compatible
FX-ES41-AW01
Stainless Steel
Arctic White
20mm
Compatible
FX-ES41-BL01
Stainless Steel
Blue
20mm
Compatible
Essence 43
0331.1.6220.900
Black Dlc
Black
22mm
Compatible
0331.1.6220.100
Steel
Black
22mm
Compatible
0331.1.6620.100
Steel
Blue
22mm
Compatible
0331.1.6020.100
Steel
White
22mm
Compatible
0331.1.6120.100
Steel
Silver
22mm
Compatible
0331.1.6320.200
Steel
Brown
22mm
Compatible
0331.1.6420.200
Steel
Green
22mm
Compatible
0331.1.6120.200
Steel
Grey
22mm
Compatible
0331.1.6820.100
Steel
Ice Blue
22mm
Compatible
0331.1.6920.100
Steel
Turquoise
22mm
Compatible
Essence Automatic
ES-41-BK01
Steel
Black
22mm
Compatible
ES-41-BL01
Steel
Blue
22mm
Compatible
ESS43-BLK-2018
Stainless Steel
Black
22mm
Compatible
ESS43-BLU-2018
Stainless Steel
Blue
22mm
Compatible
ES-39-BL01
Stainless Steel
Blue
20mm
Compatible
ES-39-BK01
Steel
Black
20mm
Compatible
ES-39-SL01
Steel
Silver
20mm
Compatible
ES-41-GN01
Steel
Green
22mm
Compatible
ES-41-GR01
Steel
Grey
22mm
Compatible
ES-41-SL01
Steel
Silver
22mm
Compatible
ESS43-SLV-2019
Stainless Steel
Silver
22mm
Compatible
ES-39-GN01
Steel
Green
20mm
Compatible
ES-39-GR01
Steel
Grey
20mm
Compatible
ES-41-BR01
Steel
Brown
22mm
Compatible
ESS43-GRN-2020
Stainless Steel
Green
22mm
Compatible
ES-39-BR01
Steel
Brown
20mm
Compatible
ES-41-BG01
Steel
Burgundy
22mm
Compatible
ES-41-IB01
Steel
Ice Blue
22mm
Compatible
ESS41-BLK-2021
Stainless Steel
Black
20mm
Compatible
ESS41-BLU-2021
Stainless Steel
Blue
20mm
Compatible
ESS41-WHT-2021
Stainless Steel
White
20mm
Compatible
ES-39-IB01
Steel
Ice Blue
20mm
Compatible
ES-39-SM01
Steel
Salmon
20mm
Compatible
ES-41-PB01
Steel
Pastel Blue
22mm
Compatible
ESS41-COP-2022
Stainless Steel
Copper
20mm
Compatible
ES-39-CB01
Steel
Cobalt
20mm
Compatible
ES-41-PP01
Steel
Purple
22mm
Compatible
ESS41-PUR-2023
Stainless Steel
Purple
20mm
Compatible
ESS41-SAND-2023
Stainless Steel
Sand
20mm
Compatible
ESS41-GMT-2023
Stainless Steel
Black/Gmt
20mm
Compatible
ES-39-PP01
Steel
Purple
20mm
Compatible
ESS41-GLD-2024
Gold Pvd
Champagne
20mm
Compatible
ESS41-FRST-2024
Stainless Steel
Forest Green
20mm
Compatible
ESS41-LIME-2024
Stainless Steel
Lime Green
20mm
Compatible
ESS41-SKY-2024
Stainless Steel
Sky Blue
20mm
Compatible
ESS41-DENIM-2025
Steel
Denim Blue
20mm
Compatible
ESS41-ROSE-2025
Steel
Rose Gradient
20mm
Compatible
ESS41-LV-2025
Steel
Lavender
20mm
Compatible
Essence Limited
FX-ES41-LTD-CP01
Steel
Copper
20mm
Compatible
FX-ES41-LTD-IC01
Steel
Ice Blue
20mm
Compatible
FX-ES41-LTD-JD01
Steel
Jade Green
20mm
Compatible
FX-ES41-LTD-RB01
Steel
Ruby Red
20mm
Compatible
FX-ES41-LTD-SKS01
Sapphire
Skeleton
20mm
Compatible
FX-ES41-LTD-EM01
Steel
Emerald
20mm
Compatible
Essence ThirtyNine
ESS39-BLK-2020
Stainless Steel
Black
20mm
Compatible
ESS39-BLU-2020
Stainless Steel
Blue
20mm
Compatible
ESS39-SLV-2021
Stainless Steel
Silver
20mm
Compatible
ESS39-GRN-2022
Stainless Steel
Green
20mm
Compatible
ESS39-COP-2023
Stainless Steel
Copper
20mm
Compatible
ESS39-PUR-2023
Stainless Steel
Purple
20mm
Compatible
ESS39-PET-2024
Stainless Steel
Petrol Blue
20mm
Compatible
ESS39-CHOC-2024
Steel
Chocolate Brown
20mm
Compatible
ESS39-ICEBL-2024
Steel
Ice Blue
20mm
Compatible
ESS39-JADE-2024
Steel
Jade Green
20mm
Compatible
ESS39-YLW-2024
Steel
Yellow
20mm
Compatible
ESS39-CORAL-2025
Steel
Coral Orange
20mm
Compatible
ESS39-EMR-2025
Steel
Emerald Green
20mm
Compatible
ESS39-RSUN-2025
Steel
Rose Sunburst
20mm
Compatible
ESS39-WAVE-2025
Steel
Steel Wave Texture
20mm
Compatible
Field
Reference
Material
Dial
Lug
Smartlet
Field 34
FIELD34-BLK-2024
Stainless Steel
Black
18mm
Compatible
FIELD34-BLU-2024
Stainless Steel
Blue
18mm
Compatible
FIELD34-CORAL-2024
Stainless Steel
Coral
18mm
Compatible
FIELD34-CRM-2024
Stainless Steel
Cream
18mm
Compatible
FIELD34-IND-2024
Stainless Steel
Indigo Blue
18mm
Compatible
FIELD34-LILAC-2024
Stainless Steel
Lilac
18mm
Compatible
FIELD34-MINT-2024
Stainless Steel
Mint Green
18mm
Compatible
FIELD34-PUR-2024
Stainless Steel
Purple
18mm
Compatible
FIELD34-SAND-2024
Stainless Steel
Sand
18mm
Compatible
FIELD34-SLV-2024
Stainless Steel
Silver
18mm
Compatible
FIELD34-YLW-2024
Stainless Steel
Yellow
18mm
Compatible
FIELD34-AMT-2025
Stainless Steel
Arctic Mint
18mm
Compatible
FIELD34-NVY-2025
Stainless Steel
Navy
18mm
Compatible
FIELD34-ORGPOP-2025
Stainless Steel
Orange Pop
18mm
Compatible
FIELD34-SS-2025
Stainless Steel
Sandstorm
18mm
Compatible
FIELD34-CRSN-2025
Steel
Coral Sun
18mm
Compatible
FIELD34-ECL-2025
Steel
Dark Blue
18mm
Compatible
FIELD34-LAV2-2025
Steel
Lavender Ii
18mm
Compatible
FIELD34-SPGRN-2025
Steel
Spring Green
18mm
Compatible
Field 36
FD-36-BK01
Titanium
Black
20mm
Compatible
FD-36-BL01
Titanium
Blue
20mm
Compatible
FD-36-GN01
Titanium
Green
20mm
Compatible
FD-36-GR01
Titanium
Grey
20mm
Compatible
FD-36-SL01
Titanium
Silver
20mm
Compatible
FD-36-BR01
Titanium
Brown
20mm
Compatible
FD-36-IB01
Titanium
Ice Blue
20mm
Compatible
FD-36-CB01
Titanium
Cobalt
20mm
Compatible
FD-36-CR01
Titanium
Coral
20mm
Compatible
FD-36-PP01
Titanium
Purple
20mm
Compatible
Field 39
FIELD39-ARMY-2024
Titanium/Steel
Army Green
20mm
Compatible
FIELD39-DSR-2024
Titanium/Steel
Desert Rose
20mm
Compatible
FIELD39-MID-BLU-2024
Titanium/Steel
Midnight Blue
20mm
Compatible
FIELD39-TAC-BLK-2024
Titanium/Steel
Black Tactical
20mm
Compatible
0355.2.6220.000
Titanium
Black
20mm
Compatible
0355.2.6620.000
Titanium
Blue
20mm
Compatible
0355.2.6420.000
Titanium
Green
20mm
Compatible
0355.2.6120.000
Titanium
Grey
20mm
Compatible
0355.2.6820.000
Titanium
Aqua
20mm
Compatible
0355.2.3020.000
Titanium
Cobalt
20mm
Compatible
0355.2.6920.000
Titanium
Salmon
20mm
Compatible
0355.2.6020.000
Titanium
White
20mm
Compatible
0355.2.0920.000
Titanium
Desert Beige
20mm
Compatible
0355.2.2720.000
Titanium
Emerald Green
20mm
Compatible
Field 41
0355.1.6120.000
Titanium
Grey
20mm
Compatible
0355.1.6320.000
Titanium
Brown
20mm
Compatible
0355.1.6820.000
Titanium
Sand
20mm
Compatible
0355.1.7020.000
Titanium
Ice Blue
20mm
Compatible
0355.1.6920.000
Titanium
Coral
20mm
Compatible
0355.1.6620.000
Titanium
Blue
20mm
Compatible
0355.1.6220.000
Titanium
Black
20mm
Compatible
FD-41-BK01
Titanium
Black
22mm
Compatible
FD-41-BL01
Titanium
Blue
22mm
Compatible
0355.1.6420.000
Titanium
Green Sage
20mm
Compatible
FD-41-GN01
Titanium
Green
22mm
Compatible
FD-41-GR01
Titanium
Grey
22mm
Compatible
0355.1.6520.000
Titanium
Olive
20mm
Compatible
FD-41-IB01
Titanium
Ice Blue
22mm
Compatible
0355.1.4120.000
Titanium
Violet
20mm
Compatible
FD-41-PP01
Titanium
Purple
22mm
Compatible
FD-41-SD01
Titanium
Sand
22mm
Compatible
FD-41-CB01
Titanium
Cobalt
22mm
Compatible
FD-41-CR01
Titanium
Coral
22mm
Compatible
FD-41-OL01
Titanium
Olive
22mm
Compatible
Field Automatic
FX-FLD41-GR01
Titanium
Grey
20mm
Compatible
FX-FLD41-SD01
Titanium
Sand
20mm
Compatible
FX-FLD41-BK01
Titanium
Black
20mm
Compatible
FX-FLD41-BL01
Titanium
Blue
20mm
Compatible
FX-FLD41-BR01
Titanium
Brown
20mm
Compatible
FX-FLD41-CB01
Titanium
Cobalt
20mm
Compatible
FX-FLD41-GN01
Titanium
Green
20mm
Compatible
FX-FLD41-IB01
Titanium
Ice Blue
20mm
Compatible
FX-FLD41-PP01
Titanium
Purple
20mm
Compatible
FX-FLD41-RD01
Titanium
Red
20mm
Compatible
FIELD39-BLK-2022
Titanium/Steel
Black
20mm
Compatible
FIELD39-SAND-2022
Titanium/Steel
Sand
20mm
Compatible
FIELD39-BURG-2023
Titanium/Steel
Burgundy
20mm
Compatible
FIELD39-GRN-2023
Titanium/Steel
Green
20mm
Compatible
FIELD39-LIME-2023
Titanium/Steel
Lime Green
20mm
Compatible
FIELD39-PETROL-2023
Titanium/Steel
Petrol Blue
20mm
Compatible
FIELD39-SLT-2023
Titanium/Steel
Slate Grey
20mm
Compatible
FIELD39-ARCW-2024
Titanium/Steel
Arctic White
20mm
Compatible
FIELD39-GPH-2024
Titanium/Steel
Graphite
20mm
Compatible
FIELD39-NVY-2024
Titanium/Steel
Navy Blue
20mm
Compatible
FIELD39-OLV-2024
Titanium/Steel
Olive Green
20mm
Compatible
FIELD39-PUR-2024
Titanium/Steel
Purple
20mm
Compatible
FIELD39-TCO-2024
Titanium/Steel
Terracotta
20mm
Compatible
FIELD39-BRZSD-2025
Titanium/Steel
Bronze/Sand
20mm
Compatible
FIELD39-DTL-2025
Titanium/Steel
Deep Teal
20mm
Compatible
FIELD39-JFOG-2025
Titanium/Steel
Jade Fog Green
20mm
Compatible
FIELD39-NOR-2025
Titanium/Steel
Nordic Blue
20mm
Compatible
FX-FLD39-BK01
Titanium
Black
20mm
Compatible
FX-FLD39-BL01
Titanium
Blue
20mm
Compatible
FX-FLD39-GR01
Titanium
Grey
20mm
Compatible
FX-FLD39-SD01
Titanium
Sand
20mm
Compatible
FX-FLD39-BR01
Titanium
Brown
20mm
Compatible
FX-FLD39-GN01
Titanium
Green
20mm
Compatible
FX-FLD39-IB01
Titanium
Ice Blue
20mm
Compatible
FX-FLD39-CB01
Titanium
Cobalt
20mm
Compatible
FX-FLD39-PP01
Titanium
Purple
20mm
Compatible
FX-FLD39-RD01
Titanium
Red
20mm
Compatible
Formex
Reference
Material
Dial
Lug
Smartlet
4SPD-CHR-2008
Steel
Black/Red
22mm
Compatible
4SPD-GMT-2009
Steel
Black Gmt
22mm
Compatible
4SPD-YLW-2010
Steel
Yellow Racing
22mm
Compatible
4SPD-SKEL-2010
Steel
Skeleton
22mm
Compatible
Motorsport
Reference
Material
Dial
Lug
Smartlet
Motorsport Chronograph
MS-CHR-RED-2008
Steel
Red Racing
22mm
Compatible
MS-CHR-YLW-2009
Steel
Yellow Racing
22mm
Compatible
Motorsport GMT
MS-GMT-BKOR-2010
Steel
Black/Orange Gmt
22mm
Compatible
MS-GMT-BLU-2010
Steel
Blue Gmt
22mm
Compatible
Motorsport V6
V6-TI-2004
Titanium
Black
22mm
Compatible
V6-BKOR-2004
Steel
Black/Orange
22mm
Compatible
V6-CARB-2005
Carbon/Steel
Black/Red
22mm
Compatible
N6-BLU-2005
Steel
Blue Dial
22mm
Compatible
Motorsport V8
V8-CHR-2006
Steel
Black
22mm
Compatible
V8-CHR-BLU-2007
Steel
Blue Racing
22mm
Compatible
Pilot
Reference
Material
Dial
Lug
Smartlet
Pilot 46
0400.2.6220.000
Titanium
Black
22mm
Compatible
0400.2.6620.000
Titanium
Blue
22mm
Compatible
0400.2.6320.000
Titanium
Brown
22mm
Compatible
0400.2.6120.000
Titanium
Grey
22mm
Compatible
0400.2.6020.000
Titanium
White
22mm
Compatible
0400.1.6220.000
Steel
Black
22mm
Compatible
0400.1.6620.000
Steel
Blue
22mm
Compatible
0400.1.6220.400
Steel
Black
22mm
Compatible
0400.1.6120.000
Steel
Grey
22mm
Compatible
0400.1.6020.000
Steel
White
22mm
Compatible
0400.1.6620.400
Steel
Blue
22mm
Compatible
0400.1.6020.400
Steel
White
22mm
Compatible
0400.1.6320.000
Steel
Brown
22mm
Compatible
0400.1.6120.400
Steel
Grey
22mm
Compatible
0400.1.6320.400
Steel
Brown
22mm
Compatible
Pilot Automatic
FX-PLT-BK01
Steel
Black
22mm
Compatible
FX-PLT-BL01
Steel
Blue
22mm
Compatible
FX-PLT-GN01
Steel
Green
22mm
Compatible
FX-PLT-GR01
Steel
Grey
22mm
Compatible
FX-PLT-BR01
Steel
Brown
22mm
Compatible
FX-PLT-IB01
Steel
Ice Blue
22mm
Compatible
FX-PLT-CB01
Steel
Cobalt
22mm
Compatible
FX-PLT-PP01
Steel
Purple
22mm
Compatible
FX-PLT-RD01
Steel
Red
22mm
Compatible
FX-PLT-SD01
Steel
Sand
22mm
Compatible
Pilot Black
PL-44-BK01
Steel
Black
22mm
Compatible
Pilot Blue
PL-44-BL01
Steel
Blue
22mm
Compatible
Pilot Burgundy
PL-44-BG01
Steel
Burgundy
22mm
Compatible
Pilot Chronograph
PILOT-CHR-DLC-2007
Black Dlc
Black
22mm
Compatible
PILOT-CHR-RED-2008
Black Pvd
Red/Black
22mm
Compatible
PILOT-CHR-BLK-2006
Stainless Steel
Black
22mm
Compatible
PILOT-CHR-SL-2007
Stainless Steel
Silver
22mm
Compatible
PILOT-CHR-BLU2-2007
Steel
Blue
22mm
Compatible
PILOT-CHR-GRN-2008
Steel
Green
22mm
Compatible
Pilot Cobalt
PL-44-CB01
Steel
Cobalt
22mm
Compatible
Pilot GMT
PILOT-GMT-YLW-2009
Stainless Steel
Black/Yellow
22mm
Compatible
PILOT-GMT-BLBL-2009
Steel
Black/Blue Gmt
22mm
Compatible
0400.1.6220.300
Steel
Black
22mm
Compatible
0400.1.6620.300
Steel
Blue
22mm
Compatible
0400.1.6020.300
Steel
White
22mm
Compatible
0400.1.6320.300
Steel
Brown
22mm
Compatible
0400.1.6120.300
Steel
Grey
22mm
Compatible
Pilot Green
PL-44-GN01
Steel
Green
22mm
Compatible
Pilot Grey
PL-44-GR01
Steel
Grey
22mm
Compatible
Pilot Ice
PL-44-IB01
Steel
Ice Blue
22mm
Compatible
Pilot Jade
PL-44-JD01
Steel
Jade
22mm
Compatible
Pilot Purple
PL-44-PP01
Steel
Purple
22mm
Compatible
Pilot Salmon
PL-44-SM01
Steel
Salmon
22mm
Compatible
Prototype
Reference
Material
Dial
Lug
Smartlet
Prototype Essence
PROTO-ESS41-TI-2022
Titanium
Grey Proto
20mm
Compatible
PROTO-ESS-GMT-TI-2024
Titanium
Grey Proto
20mm
Compatible
P-ESS-CARB-SK-2024
Carbon
Grey Skeleton
20mm
Compatible
P-FMX-EOIL
Steel
Oil Black
22mm
Compatible
P-FX-ES-SAP01
Sapphire
Transparent
20mm
Compatible
Prototype Field
P-FMX-FL
Titanium
Full Lume
22mm
Compatible
P-FX-FLD-EN01
Steel
White Enamel
20mm
Compatible
Prototype Leggera
PROTO-LEG38-CARB-2025
Carbon Composite
Grey Proto
20mm
Compatible
Prototype Reef
P-REEF-BRZ-2023
Bronze
Grey Proto
22mm
Compatible
P-FMX-RTI
Titanium
Grey
22mm
Compatible
PROTO-REEF-TIDE-2025
Titanium
Black Proto
22mm
Compatible
PROTO-REEF-SKEL-2023
Steel
Skeleton Proto
22mm
Compatible
PROTO-REEF-CER-PUR-2024
Steel/Ceramic
Purple Proto
22mm
Compatible
PROTO-REEF36-2025
Steel
Black Proto
18mm
Compatible
PROTO-REEF-CERMNT-2025
Ceramic
Mint Proto
22mm
Compatible
P-FX-RE-FC01
Carbon/Steel
Carbon Black
22mm
Compatible
PROTO-REEF-GMT-ARC-2025
Steel
Arctic Proto
22mm
Compatible
Racer
Reference
Material
Dial
Lug
Smartlet
Racer Chronograph
RACER-CHR-BLU-2008
Stainless Steel
Blue
22mm
Compatible
RACER-CHR-ORG-2008
Stainless Steel
Orange Racing
22mm
Compatible
Racer GMT
RACER-GMT-BLK-2009
Stainless Steel
Black Gmt
22mm
Compatible
Racer Skeleton
RACER-SKEL-BLK-2007
Stainless Steel
Skeleton Black
22mm
Compatible
RACER-SKEL-BLU-2008
Stainless Steel
Skeleton Blue
22mm
Compatible
Reef
Reference
Material
Dial
Lug
Smartlet
Reef 39
REEF39-PROT-2023
Stainless Steel
Black Proto
20mm
Compatible
REEF39-PROT-BLU-2024
Stainless Steel
Blue Proto
20mm
Compatible
REEF39-BLK-2024
Stainless Steel
Black
20mm
Compatible
REEF39-BLU-2024
Stainless Steel
Blue
20mm
Compatible
REEF39-GRN-2024
Stainless Steel
Green
20mm
Compatible
REEF39-WHT-2024
Stainless Steel
White
20mm
Compatible
Reef 42
FX-RE42-BZ-GN01
Bronze
Green
22mm
Compatible
FX-RE42-BZ-BL01
Bronze
Blue
22mm
Compatible
FX-RE42-BZ-GR01
Bronze
Grey
22mm
Compatible
FX-RE42-BZ-BK01
Bronze
Black
22mm
Compatible
FX-RE42-GMT-BZ-BK01
Bronze
Black
22mm
Compatible
FX-RE42-BK01
Stainless Steel
Titanium Bezel
22mm
Compatible
FX-RE42-BL01
Stainless Steel
Titanium Bezel
22mm
Compatible
FX-RE42-GN01
Stainless Steel
Titanium Bezel
22mm
Compatible
FX-RE42-WH01
Stainless Steel
Titanium Bezel
22mm
Compatible
0350.1.6220.100
Steel
Black
22mm
Compatible
0350.1.6620.100
Steel
Blue
22mm
Compatible
0350.1.6420.100
Steel
Green
22mm
Compatible
FX-RE42-GR01
Stainless Steel
Titanium Bezel
22mm
Compatible
FX-RE42-SD01
Stainless Steel
Titanium Bezel
22mm
Compatible
0350.1.6120.100
Steel
Grey
22mm
Compatible
0350.1.6020.100
Steel
White
22mm
Compatible
0350.1.6720.100
Steel
Orange
22mm
Compatible
REEF42-ABYSS-2023
Stainless Steel
Abyss Blue
22mm
Compatible
REEF42-SUNB-2023
Stainless Steel
Sunburn Orange
22mm
Compatible
0350.1.6820.100
Steel
Turquoise
22mm
Compatible
REEF42-AST-2024
Stainless Steel
White/Blue Storm
22mm
Compatible
REEF42-NL-2024
Stainless Steel
Green Wave
22mm
Compatible
0350.1.6820.200
Steel
Ice Blue
22mm
Compatible
0350.1.6320.200
Steel
Copper
22mm
Compatible
0350.1.6720.200
Steel
Purple
22mm
Compatible
FX-RE42-GMT-BZ-BL01
Bronze
Blue
22mm
Compatible
FX-RE42-GMT-BZ-SD01
Bronze
Sand
22mm
Compatible
FX-RE42-GMT-GN01
Stainless Steel
Green
22mm
Compatible
FX-RE42-GMT-BZ-GN01
Bronze
Green
22mm
Compatible
FX-RE42-GMT-BZ-RD01
Bronze
Red
22mm
Compatible
FX-RE42-GMT-WH01
Stainless Steel
White
22mm
Compatible
FX-RE42-GMT-BL01
Stainless Steel
Black/Blue
22mm
Compatible
FX-RE42-GMT-RD01
Stainless Steel
Black/Red
22mm
Compatible
Reef Automatic
RF-42-BL01
Stainless Steel
Blue
22mm
Compatible
RF-42-BK01
Steel
Black
22mm
Compatible
RF-42-GN01
Steel
Green
22mm
Compatible
RF-42-GR01
Steel
Grey
22mm
Compatible
RF-42-IB01
Steel
Ice Blue
22mm
Compatible
RF-42-SL01
Steel
Silver
22mm
Compatible
RF-42-BG01
Steel
Burgundy
22mm
Compatible
RF-42-CB01
Steel
Cobalt
22mm
Compatible
RF-42-PP01
Steel
Purple
22mm
Compatible
RF-42-SD01
Steel
Sand
22mm
Compatible
Reef Ceramic
REEF-CER-BLK-2023
Stainless Steel/Ceramic
Black
22mm
Compatible
REEF-CER-WHT-2024
Steel/Ceramic
White
22mm
Compatible
Reef Chronograph
0350.3.6220.100
Steel
Black
22mm
Compatible
0350.3.6620.100
Steel
Blue
22mm
Compatible
0350.3.6420.100
Steel
Green
22mm
Compatible
0350.3.6020.100
Steel
White
22mm
Compatible
0350.3.6820.100
Steel
Ice Blue
22mm
Compatible
0350.3.6120.100
Steel
Grey
22mm
Compatible
0350.3.6720.100
Steel
Orange
22mm
Compatible
0350.3.6920.100
Steel
Turquoise
22mm
Compatible
0350.3.4020.100
Steel
Purple
22mm
Compatible
0350.3.6620.200
Steel/Gold
Blue
22mm
Compatible
Reef Chronometer
REEF-CHR-SNB-2023
Steel
Sand/Black
22mm
Compatible
Reef Diver
REEF42-BLK-2021
Stainless Steel
Black
22mm
Compatible
REEF42-BLU-2021
Stainless Steel
Blue
22mm
Compatible
REEF42-GRN-2021
Stainless Steel
Green
22mm
Compatible
REEF42-WHT-2021
Stainless Steel
White
22mm
Compatible
REEF42-ICEBL-2022
Stainless Steel
Ice Blue
22mm
Compatible
BREEF42-COP-2022
Stainless Steel
Copper
22mm
Compatible
REEF42-CHRONO-2022
Stainless Steel
Black/White
22mm
Compatible
REEF42-CHM-2023
Stainless Steel
Champagne
22mm
Compatible
REEF42-SAND-2023
Stainless Steel
Sand
22mm
Compatible
REEF42-BRG-2023
Stainless Steel
Burgundy
22mm
Compatible
REEF-CHR-WB-2023
Stainless Steel
White/Black
22mm
Compatible
REEF42-ANT-2024
Stainless Steel
Anthracite
22mm
Compatible
REEF42-SUN-2024
Stainless Steel
Sunset Orange
22mm
Compatible
REEF42-GRN2-2024
Steel
Forest Green Ii
22mm
Compatible
REEF42-ME-SAND-2024
Steel
Desert Sand
22mm
Compatible
REEF42-EMR-2024
Stainless Steel
Emerald Green
22mm
Compatible
REEF42-BRG2-2025
Steel
Burgundy Sunburst
22mm
Compatible
REEF42-JPN-SAK-2025
Steel
Sakura Pink
22mm
Compatible
REEF42-JPN-IND-2025
Steel
Indigo Blue
22mm
Compatible
Reef GMT
REEF42-GMT-BRZ-2023
Bronze
Black
22mm
Compatible
REEF42-GMT-BRZ-BLU-2024
Bronze
Blue Gmt
22mm
Compatible
REEF42-GMT-BRZ-GRN-2024
Bronze
Green Gmt
22mm
Compatible
REEF42-GMT-BLK-2022
Stainless Steel
Black Gmt
22mm
Compatible
REEF42-GMT-BLU-2022
Stainless Steel
Blue Gmt
22mm
Compatible
0350.2.6220.100
Steel
Black
22mm
Compatible
0350.2.6620.100
Steel
Blue
22mm
Compatible
0350.2.6420.100
Steel
Green
22mm
Compatible
RF-42-GMT-BK01
Steel
Black
22mm
Compatible
RF-42-GMT-BL01
Steel
Blue
22mm
Compatible
REEF42-GMT-BRN-2023
Stainless Steel
Brown Gmt
22mm
Compatible
REEF42-GMT-GRN-2023
Stainless Steel
Green Gmt
22mm
Compatible
REEF42-GMT-ORG-2023
Stainless Steel
Orange Gmt
22mm
Compatible
REEF42-GMT-WHT-2023
Stainless Steel
White Gmt
22mm
Compatible
0350.2.6020.100
Steel
White
22mm
Compatible
RF-42-GMT-GN01
Steel
Green
22mm
Compatible
RF-42-GMT-GR01
Steel
Grey
22mm
Compatible
0350.2.6820.100
Steel
Ice Blue
22mm
Compatible
0350.2.6720.100
Steel
Orange
22mm
Compatible
0350.2.6920.100
Steel
Turquoise
22mm
Compatible
REEF42-GMT-GLC-2024
Steel
Glacier White
22mm
Compatible
REEF42-GMT-PUR-2024
Steel
Purple Gmt
22mm
Compatible
REEF42-GMT-SAND-2024
Steel
Sandstorm
22mm
Compatible
RF-42-GMT-IB01
Steel
Ice Blue
22mm
Compatible
RF-42-GMT-PP01
Steel
Purple
22mm
Compatible
REEF42-GMT-CER-BL-2024
Steel/Ceramic
Black/Blue
22mm
Compatible
REEF42-GMT-CER-GRN-2024
Steel/Ceramic
Black/Green
22mm
Compatible
REEF42-GMT-WG-2024
Steel/Gold
White
22mm
Compatible
REEF42-GMT-RED-2024
Stainless Steel
Black/Red Gmt
22mm
Compatible
REEF42-GMT-BLORG-2024
Stainless Steel
Blue/Orange Gmt
22mm
Compatible
PRF-42-GMT-01
Rose Gold
Blue
22mm
Compatible
0350.2.3020.100
Steel
Cobalt
22mm
Compatible
0350.2.5020.100
Steel
Navy
22mm
Compatible
0350.2.4020.100
Steel
Purple
22mm
Compatible
REEF42-GMT-AW2-2025
Steel
Arctic White
22mm
Compatible
REEF42-GMT-JADE-2025
Steel
Jade Green Gmt
22mm
Compatible
REEF42-GMT-NSKY-2025
Steel
Night Sky (Deep Blue)
22mm
Compatible
RF-42-GMT-CB01
Steel
Cobalt
22mm
Compatible
RF-42-GMT-CR01
Steel
Coral
22mm
Compatible
RF-42-GMT-JD01
Steel
Jade
22mm
Compatible
Reef Limited
FX-RE42-LTD-FB01
Steel
Frost Blue
22mm
Compatible
FX-RE42-LTD-DG01
Steel
Deep Green
22mm
Compatible
FX-RE42-LTD-MET01
Steel
Meteorite
22mm
Compatible
FX-RE42-LTD-JD01
Steel
Jade
22mm
Compatible
Reef Oilfilled
PROTO-FX-ROIL
Steel
Black Oil
22mm
Compatible
Reef Radiant
REEF-RBZ-BLU-2023
Bronze
Blue
22mm
Compatible
REEF-RBZ-GRN-2023
Bronze
Green
22mm
Compatible
Reef Stealth
REEF-STEALTH-GRY-2023
Steel
Grey Stealth
22mm
Compatible
Reef White
REEF-LEO-WHT-2023
Steel
White Leopard
22mm
Compatible
Space
Reference
Material
Dial
Lug
Smartlet
SP-42-MB01
Steel
Meteorite Blue
22mm
Compatible
SP-42-MG01
Steel
Meteorite Grey
22mm
Compatible
SP-42-MK01
Steel
Meteorite Black
22mm
Compatible
SP-42-MR01
Steel
Meteorite Red
22mm
Compatible
SP-42-MCB01
Steel
Meteorite Cobalt
22mm
Compatible
SP-42-MCR01
Steel
Meteorite Copper
22mm
Compatible
SP-42-MIB01
Steel
Meteorite Ice Blue
22mm
Compatible
SP-42-MJD01
Steel
Jade Meteorite
22mm
Compatible
SP-42-MG02
Steel
Meteorite Green
22mm
Compatible
SP-42-MP01
Steel
Meteorite Purple
22mm
Compatible
Swiss
Reference
Material
Dial
Lug
Smartlet
Swiss Only
FMX-SWO-BLU-2023
Steel
Swiss-Blue
20mm
Compatible
FMX-SWO-SLV-2023
Steel
Silver Sunburst
20mm
Compatible
Swiss Special
FMX-HEL-BLUE-2024
Steel
Alpine Blue
20mm
Compatible
FMX-HEL-RED-2024
Steel
Red
20mm
Compatible
FMX-HEL-WHT-2024
Steel
White
20mm
Compatible
Vintage
Reference
Material
Dial
Lug
Smartlet
Vintage 2000
FX-VT00-CH-BK01
Steel
Black
20mm
Compatible
FX-VT00-CH-BL01
Steel
Blue
20mm
Compatible
FX-VT00-CH-GN01
Steel
Green
20mm
Compatible
FX-VT00-CH-GR01
Steel
Grey
20mm
Compatible
FX-VT00-CH-BR01
Steel
Brown
20mm
Compatible
FX-VT00-CH-IB01
Steel
Ice Blue
20mm
Compatible
FX-VT00-CH-CB01
Steel
Cobalt
20mm
Compatible
FX-VT00-CH-PP01
Steel
Purple
20mm
Compatible
FX-VT00-CH-RD01
Steel
Red
20mm
Compatible
FX-VT00-CH-SD01
Steel
Sand
20mm
Compatible
Vintage Diver
VINT-DIV-2004
Stainless Steel
Black
20mm
Compatible
VINT-DIV2-2006
Stainless Steel
Black/Red
20mm
Compatible
VINT-DIV-YL-2006
Stainless Steel
Yellow
20mm
Compatible
VINT-DIV-BLU-2008
Stainless Steel
Blue
20mm
Compatible
Women’s
Reference
Material
Dial
Lug
Smartlet
Women’s Classic
LADY-CL-2004
Steel
Mop White
18mm
Compatible
LADY-CL-DIA-2004
Steel
White/Diamonds
18mm
Compatible
LADY-BLU-2005
Steel
Blue
18mm
Compatible
LADY-ROSE-2006
Steel
Pink
18mm
Compatible
Women’s Essence
LADY-ESS-BLU-2024
Steel
Blue
18mm
Compatible
LADY-ESS-GRN-2024
Steel
Green
18mm
Compatible
LADY-ESS-PEARL-2024
Steel
Pearl White
18mm
Compatible
Women’s Racing
LADY-RACE-PNK-2007
Steel
Pink Racing
18mm
Compatible
Kompatible Smartwatches
Smartwatches to pair with your Formex
Wear your smartwatch simultaneously with your Formex via Smartlet One. Lug widths 18mm to 24mm natively supported.
Apple Watch
View pairing guide →
Samsung Galaxy Watch
View pairing guide →
Garmin Fenix
View pairing guide →
Garmin Forerunner
View pairing guide →
Garmin Venu
View pairing guide →
Google Pixel Watch
View pairing guide →
Withings ScanWatch
View pairing guide →
Polar Vantage
View pairing guide →
Fitbit Charge
View pairing guide →
Huawei Watch GT
View pairing guide →
Coros
View pairing guide →
Suunto
View pairing guide →
Whoop
View pairing guide →
Questions
Frequently asked questions
Does Smartlet work with Formex watches?
Yes. Formex references from 18mm to 22mm lug width are natively supported by Smartlet One.
Will Smartlet affect the Formex suspended movement system?
No. Smartlet attaches via spring-bar slots at the lug ends. The 4-point suspension system is completely unaffected.
Which Formex models have guides?
The Essence Leggera has a full reference table covering 166 references across 39mm, 41mm, and 43mm case sizes.
