Wear a smartwatch with your Yema

Wear a smartwatch with your Yema

Smartlet One is compatible with all Yema Superman and Rallygraf references using 19mm to 20mm lug widths, natively supported with no adapter. Installation uses the standard spring-bar system - no modification to the watch, fully reversible in seconds.
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Yema compatibility

Wear a smartwatch with your Yema

In short Smartlet One is compatible with all Yema Superman and Rallygraf references using 19mm to 20mm lug widths, natively supported with no adapter. Installation uses the standard spring-bar system - no modification to the watch, fully reversible in seconds.

Yema made the Superman in 1963 and gave it to French Navy divers. The reference survived production discontinuation, multiple ownership changes, and forty years of obscurity to become the defining object of French watch collecting. The modern Superman Heritage keeps the tonneau case and the chapter ring. The Rallygraf keeps the motorsport chronograph legibility. Yema buyers chose French watchmaking heritage on its own terms. Smartlet One fits via spring bars - the Superman's case shape and the Rallygraf's panda dial are untouched.

Wear yours How it works
The problem
Choosing between health data and horological heritage every morning.
The solution
Smartlet One replaces your Yema's strap via the standard spring-bar system and positions your smartwatch on the same wrist. Both watches run simultaneously, with no modification to the watch and full reversibility in seconds.
Brand
Yema
Lug widths
18.0mm / 19.0mm / 20.0mm / 22.0mm
Iconic models
1covered
Compatibility
Full range

Choose your edition

One mechanism. Three personalities.

Every Smartlet One includes the dedicated adapter for your wearable. Pick the finish that matches your style.

Smartlet One - Shadow - Smartlet

For the explorer

Smartlet One - Shadow

€399,00

4.9 (14)

Stealth. Switch in seconds, leave no trace.

  • Material SS316L steel, black PVD
  • Weight ~100g
  • Compatible with Rolex, Omega, Seiko + 100 more
Buy now
Compatibility

Yema models supported

Yema Superman Heritage
19mm / 20mm

Other Yema references

39 model families. Expand any group to see variants, references, and specifications.

Antarctic
19mm1 refs+
ReferenceMaterialDialLugSmartlet
ANT-EXP-2022Stainless SteelIce Blue19mmCompatible
Arctic
20mm1 refs+
ReferenceMaterialDialLugSmartlet
ARC-GMT-2023Stainless SteelBlue Gmt20mmCompatible
Armée
19mm / 20mm3 refs+
ReferenceMaterialDialLugSmartlet
AAF-PILOT-2019Stainless SteelBlue19mmCompatible
AAF-GMT-2019Stainless SteelBlack19mmCompatible
ARMEE-TAC-2023Stainless SteelKhaki20mmCompatible
Bespoke
19mm1 refs+
ReferenceMaterialDialLugSmartlet
YMA-BES-EN-202318K Pink GoldEnamel Hand-Painted19mmCompatible
CNES
20mm1 refs+
ReferenceMaterialDialLugSmartlet
CNES-OFF-2022Stainless SteelBlue/Cnes20mmCompatible
Chronograph
19mm / 20mm5 refs+
ReferenceMaterialDialLugSmartlet
CH-FE3611-1973Stainless SteelBlack19mmCompatible
CH-HER-2022Stainless SteelBlue Panda20mmCompatible
CH-MQ-RACE-2021Stainless SteelBlack/Yellow19mmCompatible
CH-V7733-PND-1975Stainless SteelWhite/Black Panda19mmCompatible
CH-V7750-1981Stainless SteelBlack20mmCompatible
Deepsea
20mm1 refs+
ReferenceMaterialDialLugSmartlet
DPSEA-1977Stainless SteelBlack20mmCompatible
Digital
19mm / 20mm2 refs+
ReferenceMaterialDialLugSmartlet
DIGI-82Stainless SteelGrey Lcd19mmCompatible
DLCD-WT-1984Stainless SteelGrey Lcd20mmCompatible
Diver
19mm4 refs+
ReferenceMaterialDialLugSmartlet
DV63-1963Stainless SteelBlack Patina19mmCompatible
DV63-2019Stainless SteelBlack Vintage19mmCompatible
DV92-1972Stainless SteelBlue19mmCompatible
DV92-2020Stainless SteelBlue Sunburst19mmCompatible
Fieldmaster
18mm1 refs+
ReferenceMaterialDialLugSmartlet
FLDM-1982Stainless SteelBlack18mmCompatible
Flygraf
19mm / 20mm7 refs+
ReferenceMaterialDialLugSmartlet
FLY-1978Stainless SteelBlack Pilot19mmCompatible
FLY-HYB-2023Stainless SteelBlack/Orange19mmCompatible
FLY-M2-2019Stainless SteelBlack19mmCompatible
FLY-P40-BLU-2022Stainless SteelBlue Pilot20mmCompatible
FLY-P40-GRY-2022Stainless SteelGrey Pilot20mmCompatible
FLY-SP-1985Stainless SteelBlack Military20mmCompatible
FLY-UTC-2021Stainless SteelBlack/Gmt20mmCompatible
France
19mm / 20mm4 refs+
ReferenceMaterialDialLugSmartlet
FR-PARIS-2024Stainless SteelBlue/Red/White20mmCompatible
FR-TRI-2022Stainless SteelTricolor19mmCompatible
FR-ALP-2020Stainless SteelBlue/White19mmCompatible
FR-CARB-2022Carbon/SteelBlack20mmCompatible
Gendarmerie
19mm1 refs+
ReferenceMaterialDialLugSmartlet
GEND-2021Stainless SteelBlue Crest19mmCompatible
LED
20mm7 refs+
ReferenceMaterialDialLugSmartlet
LED-75-REDStainless SteelRed Led20mmCompatible
TLED-1977-GOLDGold-PlatedRed Led20mmCompatible
LED-DLX-1977Gold-PlatedRed Led20mmCompatible
LED-DLX-1978-STStainless SteelRed Led20mmCompatible
LED-SPACE-1976Stainless SteelRed Led20mmCompatible
LED-SQ-78Stainless SteelRed Led20mmCompatible
LED-VERT-80Stainless SteelRed Led Vertical20mmCompatible
Meangraf
19mm3 refs+
ReferenceMaterialDialLugSmartlet
MEA-HER-2019Stainless SteelBlack/Red19mmCompatible
MEA-QZ-2020Stainless SteelBlack/Red19mmCompatible
MEA-1974Stainless SteelBlack/Orange19mmCompatible
Military
18mm / 19mm4 refs+
ReferenceMaterialDialLugSmartlet
AAF-AV-1991Stainless SteelBlack Military19mmCompatible
CRS-2022Stainless SteelBlue Crest19mmCompatible
Y-FRA-82Stainless SteelBlack18mmCompatible
GIGN-2021Stainless SteelBlack Crest19mmCompatible
Navygraf
19mm / 20mm15 refs+
ReferenceMaterialDialLugSmartlet
NM2000-2000Stainless SteelBlack20mmCompatible
NM2000-QZ-2003Stainless SteelBlue20mmCompatible
NM-LUMI-1997Stainless SteelBlack/Lume19mmCompatible
NM-CORAL-2022Stainless SteelCoral Orange19mmCompatible
FSM-2021-FRStainless SteelGrey Crest19mmCompatible
NM-II-1990Stainless SteelBlack/Yellow19mmCompatible
NM-III-2010Stainless SteelBlack20mmCompatible
MN-2021-BRZBronzeBlue20mmCompatible
MN-2020-BLUStainless SteelBlue19mmCompatible
NM-II-2022-BLUStainless SteelDark Blue19mmCompatible
NG-MAX-300BRBrassBlack20mmCompatible
NM-MAXI-2022Stainless SteelBlack20mmCompatible
NMQ-1985Stainless SteelYellow/Black19mmCompatible
NMQ-1992Stainless SteelBlack19mmCompatible
NM-SHARK-2018Stainless SteelBlack/Orange19mmCompatible
North
19mm2 refs+
ReferenceMaterialDialLugSmartlet
BIPOLE-BLK-2021Stainless SteelBlack19mmCompatible
BIPOLE-WHT-2021Stainless SteelWhite19mmCompatible
Pearl
19mm3 refs+
ReferenceMaterialDialLugSmartlet
PDV-1970Stainless SteelBlack19mmCompatible
PDV-BLK-2023Stainless SteelBlack19mmCompatible
PDV-BLU-2023Stainless SteelBlue19mmCompatible
Police
19mm1 refs+
ReferenceMaterialDialLugSmartlet
POLICE-2022Stainless SteelBlue/White Crest19mmCompatible
ProDiver
22mm3 refs+
ReferenceMaterialDialLugSmartlet
PD-1000-2020Stainless SteelBlack22mmCompatible
PD-300BR-2021BronzeBlack22mmCompatible
PD-GMT-2022Stainless SteelBlue Gmt22mmCompatible
Professionnel
19mm / 20mm4 refs+
ReferenceMaterialDialLugSmartlet
PRO-AM-1977Stainless SteelBlack20mmCompatible
PRO-HYD-1979Stainless SteelBlack20mmCompatible
PRO-2021Stainless SteelBlack20mmCompatible
PRO-SAL-1984Stainless SteelBlack/Yellow19mmCompatible
Prototype
19mm / 20mm4 refs+
ReferenceMaterialDialLugSmartlet
PROTO-BRZ-2020BronzeBlack20mmCompatible
PROTO-DIVER-1974Stainless SteelBlack20mmCompatible
PROTO-RALLY-1980Stainless SteelDragon/Yellow19mmCompatible
PROTO-SM-CH-1976Stainless SteelBlack/White20mmCompatible
Quartz
18mm / 20mm5 refs+
ReferenceMaterialDialLugSmartlet
DELX-ROM-1983Gold-PlatedWhite Roman18mmCompatible
TDIG-1980Stainless SteelBlack Lcd18mmCompatible
QSQ-1982Stainless SteelSilver18mmCompatible
TVCASE-1979-BLUStainless SteelBlue20mmCompatible
TV-DLX-1984Stainless SteelGrey Sunburst18mmCompatible
Rallye
19mm3 refs+
ReferenceMaterialDialLugSmartlet
RAL-24H-1975Stainless SteelBlack/Orange 24H19mmCompatible
RAL-COMP-1977Stainless SteelWhite/Black19mmCompatible
RAL-GT-1980Stainless SteelBlack Racing19mmCompatible
Rallygraf
19mm9 refs+
ReferenceMaterialDialLugSmartlet
RAL-24H-2022Stainless SteelBlack 24H19mmCompatible
RAL-AND-2020Stainless SteelWhite/Red19mmCompatible
RAL-CH-BLU-2022Stainless SteelBlue/White19mmCompatible
RAL-2017-QZStainless SteelBlue/White19mmCompatible
RAL-2019-MQStainless SteelBlack/White19mmCompatible
RAL-RP-2021Stainless SteelReverse Panda19mmCompatible
RAL-1970-PNDStainless SteelBlack/White Panda19mmCompatible
RAL-PERF-2021Stainless SteelBlue/Orange19mmCompatible
RAL-1972-SBStainless SteelBlue/White19mmCompatible
Scuba
19mm6 refs+
ReferenceMaterialDialLugSmartlet
SCUBA-BRZ-2021BronzeBlack19mmCompatible
SCUBA-1970-BLUStainless SteelBlue19mmCompatible
SCUBA-1975-BLKStainless SteelBlack19mmCompatible
SCUBA-II-1980Stainless SteelBlack19mmCompatible
SCUBA-HER-BLK-2018Stainless SteelBlack19mmCompatible
SCUBA-HER-BLU-2018Stainless SteelBlue19mmCompatible
Sous-Marine
19mm / 20mm14 refs+
ReferenceMaterialDialLugSmartlet
SM1000-Q-2005Stainless SteelBlack20mmCompatible
SM-1982Stainless SteelBlack19mmCompatible
SM300-1975Stainless SteelBlack19mmCompatible
SM500-A-2008Stainless SteelBlue20mmCompatible
SM500-PRO-2022Stainless SteelBlack/Yellow20mmCompatible
SM500-PRO-BLU-2022Stainless SteelBlue20mmCompatible
SM-DD-2010Stainless SteelBlack20mmCompatible
SMGMT-2020Stainless SteelBlue/Red Gmt20mmCompatible
GSM-2023-BLUStainless SteelBlue Gradient20mmCompatible
SMII-1992-BLKStainless SteelBlack20mmCompatible
SMII-1992-BLUStainless SteelBlue20mmCompatible
SM-II-2020Stainless SteelBlack20mmCompatible
SMIII-2002Stainless SteelBlack20mmCompatible
SML-TURBO-1995Stainless SteelBlack/Yellow20mmCompatible
Space
19mm / 20mm4 refs+
ReferenceMaterialDialLugSmartlet
SPA-HER-2020Stainless SteelBlack Astronaut19mmCompatible
SPACE-FR-2021Stainless SteelWhite Astronaut19mmCompatible
SPA-NESO-2022Stainless SteelGrey Astronaut20mmCompatible
SPACE-GRV-2023Stainless SteelGrey Astronaut19mmCompatible
Spacegraf
19mm2 refs+
ReferenceMaterialDialLugSmartlet
SPG-SM2-2020Stainless SteelBlue Astronaut19mmCompatible
SPG-ZG-2017Stainless SteelBlack Astronaut19mmCompatible
Spationaute
19mm / 20mm3 refs+
ReferenceMaterialDialLugSmartlet
SPA-1982Stainless SteelWhite Astronaut19mmCompatible
SPA-1986-IIStainless SteelWhite/Blue19mmCompatible
SPA-1988-IIIStainless SteelBlue/Red20mmCompatible
Special
19mm / 20mm5 refs+
ReferenceMaterialDialLugSmartlet
YMA-ART-UNQ-202318K GoldHand-Enamel Dial19mmCompatible
SPEC-NAV-2023BronzeBlack Crest20mmCompatible
SPEC-FR-2021Stainless SteelTricolore19mmCompatible
YMA-ART-202218K Pink GoldEnamel Blue19mmCompatible
SPEC-OPS-2022Black PvdBlack20mmCompatible
Superman
19mm / 20mm17 refs+
ReferenceMaterialDialLugSmartlet
YSUP-1963-LE250Stainless SteelBlack19mmCompatible
YSUP-1970-RE-2017Stainless SteelBlack Vintage20mmCompatible
SM500-2022Stainless SteelBlack20mmCompatible
SM-BRZ-GMT-2021BronzePepsi Gmt20mmCompatible
SM-BRZ-BLU-2022BronzeBlue Sunburst20mmCompatible
SM-CH-BRZ-2023BronzeBlack20mmCompatible
SM-CH-1970Stainless SteelBlack19mmCompatible
SM-CH-2021Stainless SteelBlack/White20mmCompatible
SM-CH-PND-2022Stainless SteelWhite/Black Panda20mmCompatible
SM-FAF-2020Stainless SteelBlack Faf20mmCompatible
FRA-SUP-1975Stainless SteelBlack19mmCompatible
YSUP-II-1984Stainless SteelBlack19mmCompatible
YSUP-MAXI-2021Stainless SteelBlack Maxi20mmCompatible
YSUP-SD500-1970Stainless SteelBlack19mmCompatible
SM-SLIM-2022BronzeBlack19mmCompatible
SM-WT-2023Stainless SteelBlack Worldtime20mmCompatible
YSUP-PDF-2020Stainless SteelBlue Paf19mmCompatible
Traveltime
19mm / 20mm4 refs+
ReferenceMaterialDialLugSmartlet
TT-1978-DTStainless SteelSilver/Blue19mmCompatible
TT-GMT-2022Stainless SteelBlack/Red Gmt20mmCompatible
TT-HER-2021Stainless SteelBlue Worldtime19mmCompatible
WT-1980Stainless SteelBlack Worldtime20mmCompatible
Urban
18mm / 20mm3 refs+
ReferenceMaterialDialLugSmartlet
UFLD-37-BLK-2022Stainless SteelBlack18mmCompatible
UFLD-37-SND-2022Stainless SteelSand18mmCompatible
UFLD-40-KHK-2022Stainless SteelKhaki20mmCompatible
Worldtime
19mm1 refs+
ReferenceMaterialDialLugSmartlet
WT24-1982Stainless SteelSilver City-Ring19mmCompatible
Wristmaster
18mm / 19mm / 20mm7 refs+
ReferenceMaterialDialLugSmartlet
WM-ADV-BLU-2021Stainless SteelBlue19mmCompatible
WM-ADV-GRN-2021Stainless SteelGreen19mmCompatible
WM-ADV-SLT-2022Stainless SteelGrey19mmCompatible
WM-HER-GOLD-1980Gold-PlatedChampagne18mmCompatible
WM-QZ-1977Stainless SteelSilver18mmCompatible
WM-TRL-BLK-2022Stainless SteelBlack20mmCompatible
WM-TRL-BLU-2022Stainless SteelBlue20mmCompatible
Yachtingraf
19mm / 20mm7 refs+
ReferenceMaterialDialLugSmartlet
YCR-1966Stainless SteelBlack Regatta19mmCompatible
YCR-HER-2018Stainless SteelBlack Regatta19mmCompatible
YCR-HER2-2022Stainless SteelBlack/Regatta19mmCompatible
YCR-MAR-2021Stainless SteelBlue Regatta19mmCompatible
YREG-1970Stainless SteelBlue Regatta19mmCompatible
YCR-SPACER-2023Stainless SteelBlue Astronaut20mmCompatible
YCR-TB-2022TitaniumSkeleton Regatta20mmCompatible
Yema
19mm1 refs+
ReferenceMaterialDialLugSmartlet
BIPOLE-1983Stainless SteelBlack/Red19mmCompatible

Yema lug widths:

18mm19mm20mm22mm
Frequently paired

Smartwatches worn with Yema

The most common combinations our customers wear. Find your mechanical watch and discover the right Smartlet edition.

Apple Watch
Series 0 to Ultra 3
Whoop
5.0 / MG
Garmin Forerunner
255 to 965
Samsung Galaxy Watch
Series 4 to 7
Withings ScanWatch
Light / 2 / Nova
View all brands
27 brands covered
Also compatible

Other brands

Smartlet One covers 18mm to 24mm lug widths across the finest watch brands.

Rolex
Omega
Tag Heuer
Breitling
Tudor
IWC
Longines
Seiko
Hamilton
Grand Seiko
Bell&Ross
Blancpain
Panerai
Cartier
Jaeger Lecoultre
Zenith
Rado
Tissot
Oris
Doxa
Formex
Timex
Sinn
Porsche Design
Mido
Christopher Ward
View all
Watch brand compatibility guide

Step by step

Replace your strap
01

Replace your strap

Smartlet replaces your mechanical watch strap via the standard spring-bar system. Classic, Shadow, or Titanium. No tools required.

Connect your wearable
02

Connect your wearable

Smartlet uses a dedicated adapter or native lug pins depending on your smartwatch. The connector snaps onto the Smartlet module. Zero modification to the mechanical watch.

Wear both simultaneously
03

Wear both simultaneously

Both watches sit on the same wrist. All smartwatch sensors maintain direct skin contact and operate normally.

Questions

Frequently asked questions

  • Does Smartlet work with Yema watches?
    Yes. Yema references from 19mm to 20mm lug width are natively supported by Smartlet One.
  • Which Yema models have guides?
    The Superman Heritage has a full reference table covering 22 references across 39mm and 41mm case sizes.
  • Will Smartlet affect my Yema?
    No. Smartlet attaches via the standard spring-bar slots. The movement and case seals are unaffected.
  • Does Smartlet damage or modify my mechanical watch?
    No. Smartlet replaces your standard watch strap using the existing spring-bar system. It makes no permanent modification to the watch case, lugs, or dial. The process is fully reversible in seconds. Your mechanical watch is unaffected and can be worn independently at any time by reinstalling its original strap. Smartlet is engineered to watchmaker tolerances and tested with the same care that goes into the watches it pairs with.