Wear a smartwatch with your Hamilton

Wear a smartwatch with your Hamilton

Smartlet One is compatible with all Hamilton Khaki Field, Khaki Aviation, and Jazzmaster 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.
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Hamilton compatibility

Wear a smartwatch with your Hamilton

In short Smartlet One is compatible with all Hamilton Khaki Field, Khaki Aviation, and Jazzmaster 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.

Hamilton supplied field watches to the US Army and pilot watches to commercial aviation. The Khaki Field became the reference for tool watches at honest prices. The American spirit, as the brand calls it, translates as reliability without ceremony. Smartlet One fits Hamilton references the same way: practical, reversible, requiring no permanent change to the watch. The spring bars carry both the original strap and the Smartlet with equal indifference.

Wear yours How it works
The problem
Choosing between health data and horological heritage every morning.
The solution
Smartlet One replaces your Hamilton'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
Hamilton
Lug widths
18.0mm / 19.0mm / 20.0mm / 21.0mm / 22.0mm / 24.0mm
Iconic models
2covered
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 (17)

Stealth. Switch in seconds, leave no trace.

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

Hamilton models supported

Hamilton Khaki Aviation
20mm / 22mm
Hamilton Khaki Field
20mm / 22mm / 24mm

Other Hamilton references

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

Accumatic
18mm3 refs+
ReferenceMaterialDialLugSmartlet
A507-1958Stainless SteelSilver18mmCompatible
A508-1959Stainless SteelBlack18mmCompatible
A655-1965Stainless SteelSilver18mmCompatible
American
21mm / 22mm2 refs+
ReferenceMaterialDialLugSmartlet
HMT-ACC03Stainless SteelSilver21mmCompatible
H35445860Stainless SteelBlue22mmCompatible
Boulton
18mm2 refs+
ReferenceMaterialDialLugSmartlet
H13431553Stainless SteelSilver18mmCompatible
H13519711Stainless SteelWhite Roman18mmCompatible
Canadian
18mm1 refs+
ReferenceMaterialDialLugSmartlet
COD-1950Stainless SteelBlack18mmCompatible
Chrono-Matic
19mm2 refs+
ReferenceMaterialDialLugSmartlet
HMT-C11-1969Stainless SteelBlack19mmCompatible
HMT-C12P-1971Stainless SteelWhite Panda19mmCompatible
Chronograph
19mm / 20mm / 22mm4 refs+
ReferenceMaterialDialLugSmartlet
HMT-DTM-1975Stainless SteelBlack20mmCompatible
HMT-FONT-1969Stainless SteelBlue/White22mmCompatible
HMT-7733-1968Stainless SteelSilver19mmCompatible
HMT-7733P-1970Stainless SteelWhite/Black Panda19mmCompatible
Circa
19mm2 refs+
ReferenceMaterialDialLugSmartlet
Cal.643-1968Stainless SteelSilver19mmCompatible
Cal.643P-1968Stainless SteelWhite/Black Panda19mmCompatible
Date-O-Matic
18mm1 refs+
ReferenceMaterialDialLugSmartlet
DOM-1964Stainless SteelSilver18mmCompatible
Day-O-Matic
19mm1 refs+
ReferenceMaterialDialLugSmartlet
DAY-1966Stainless SteelSilver19mmCompatible
Drake
18mm1 refs+
ReferenceMaterialDialLugSmartlet
HMT-DRK-1957Stainless SteelBlack18mmCompatible
Electric
18mm8 refs+
ReferenceMaterialDialLugSmartlet
H505-1959Stainless SteelGold18mmCompatible
EAL-1958Stainless SteelSilver18mmCompatible
EEI-1961Stainless SteelBlack18mmCompatible
EEV-1961Stainless SteelChampagne18mmCompatible
ENA-1963Stainless SteelSilver18mmCompatible
EPC-1957Stainless SteelCream18mmCompatible
ETN-1962Stainless SteelBlack18mmCompatible
EVE-1959Stainless SteelSilver18mmCompatible
Hamilton
18mm2 refs+
ReferenceMaterialDialLugSmartlet
GGW113-1967Stainless SteelBlack18mmCompatible
46374B-1975FiberglassBlack18mmCompatible
Intra-Matic
18mm / 20mm / 22mm4 refs+
ReferenceMaterialDialLugSmartlet
H38455181Stainless SteelChampagne18mmCompatible
H38716731Stainless SteelReverse Panda22mmCompatible
H38416711Stainless SteelPanda20mmCompatible
H38416541Stainless SteelReverse Panda20mmCompatible
Jazzmaster
20mm / 22mm10 refs+
ReferenceMaterialDialLugSmartlet
H42515735Stainless SteelBlack22mmCompatible
H32595731Stainless SteelSilver22mmCompatible
H32766513Stainless SteelSilver22mmCompatible
H32565555Stainless SteelBlack Open20mmCompatible
H32705141Stainless SteelSilver Open22mmCompatible
H36105140Stainless SteelBlue20mmCompatible
H36606130Stainless SteelBlack22mmCompatible
H42535640Stainless SteelBlue Skeleton20mmCompatible
H38511553Stainless SteelBlue20mmCompatible
H32515535Stainless SteelSilver20mmCompatible
Khaki
18mm / 20mm / 22mm / 24mm8 refs+
ReferenceMaterialDialLugSmartlet
H78505330TitaniumBlack24mmCompatible
H77705345TitaniumBlack20mmCompatible
H77515133Stainless SteelBlack22mmCompatible
H82515330Stainless SteelBlue22mmCompatible
H82335131Stainless SteelBlack20mmCompatible
H82315331Stainless SteelBlue20mmCompatible
H82525163Stainless Steel/Black CeramicBlack22mmCompatible
H82221110Stainless SteelWhite18mmCompatible
Korean
18mm1 refs+
ReferenceMaterialDialLugSmartlet
HMT-A17-1951Stainless SteelBlack18mmCompatible
LCD
20mm1 refs+
ReferenceMaterialDialLugSmartlet
LCD-SA-1979Stainless SteelGreen Lcd20mmCompatible
Lady
18mm1 refs+
ReferenceMaterialDialLugSmartlet
H38425540Stainless SteelChampagne18mmCompatible
Newton
18mm1 refs+
ReferenceMaterialDialLugSmartlet
HMT-NWT-1960Stainless SteelWhite18mmCompatible
Pan
22mm4 refs+
ReferenceMaterialDialLugSmartlet
H357000Stainless SteelBlue22mmCompatible
HMT-PEC-2008Stainless SteelBlue/White Panda22mmCompatible
H35405741Stainless SteelBlue22mmCompatible
H35405141Stainless SteelBlack22mmCompatible
Pulsar
18mm7 refs+
ReferenceMaterialDialLugSmartlet
P4-1976Stainless SteelRed Led18mmCompatible
P4-CALC-1976Stainless SteelRed Led18mmCompatible
P2-1972Stainless SteelRed Led18mmCompatible
P1-197218K GoldRed Led18mmCompatible
P2-1973Stainless SteelRed Led18mmCompatible
P3-1973Stainless SteelRed Led18mmCompatible
P4E-1975Stainless SteelRed Led18mmCompatible
QED
20mm1 refs+
ReferenceMaterialDialLugSmartlet
QED-1975Stainless SteelBlack20mmCompatible
RAF
18mm1 refs+
ReferenceMaterialDialLugSmartlet
HMT-6B-1952Stainless SteelBlack18mmCompatible
Railroad
18mm / 19mm / 20mm7 refs+
ReferenceMaterialDialLugSmartlet
RR326-1956Stainless SteelSilver19mmCompatible
RR327-1960Stainless SteelBlack19mmCompatible
RR730-1965Stainless SteelSilver19mmCompatible
RR736-1970Stainless SteelSilver19mmCompatible
RR-1958Stainless SteelSilver18mmCompatible
RQ-1980Stainless SteelWhite Railroad19mmCompatible
RR-CAN-1973Stainless SteelWhite Railroad Dial20mmCompatible
Richmond
18mm1 refs+
ReferenceMaterialDialLugSmartlet
HMT-RM-1962Stainless SteelSilver18mmCompatible
Stormking
18mm2 refs+
ReferenceMaterialDialLugSmartlet
HMT-SK2-1958Stainless SteelSilver18mmCompatible
HMT-SK3-1960Gold FilledChampagne18mmCompatible
Thin-o-Matic
18mm2 refs+
ReferenceMaterialDialLugSmartlet
T500-1960Stainless SteelSilver18mmCompatible
T600-1962Gold CapChampagne18mmCompatible
US
18mm1 refs+
ReferenceMaterialDialLugSmartlet
HMT-BU-1943Stainless SteelBlack18mmCompatible
Vantage
18mm / 19mm2 refs+
ReferenceMaterialDialLugSmartlet
VNG-DV-1973Stainless SteelBlack19mmCompatible
VHT-1972Stainless SteelSilver18mmCompatible
X-Wind
22mm1 refs+
ReferenceMaterialDialLugSmartlet
HMT-XW-1998Stainless SteelBlack22mmCompatible

Hamilton lug widths:

18mm19mm20mm21mm22mm24mm
Frequently paired

Smartwatches worn with Hamilton

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
Grand Seiko
Bell&Ross
Blancpain
Panerai
Cartier
Jaeger Lecoultre
Zenith
Rado
Tissot
Oris
Doxa
Formex
Timex
Sinn
Porsche Design
Mido
Yema
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 Hamilton watches?
    Yes. Hamilton references from 20mm to 24mm lug width are natively supported by Smartlet One.
  • Which Hamilton models have guides?
    Khaki Field and Khaki Aviation each have a full reference table and installation guide.
  • Will Smartlet affect my Hamilton movement?
    No. Smartlet uses standard spring bars. The ETA or H-10 movement is completely untouched.
  • 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.