Smartlet One
Smartlet One
One concept. Three different personalities
Wear a Smartwatch with Your Hamilton | Smartlet
Brand compatibility guide
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.
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.
109+References
20mm / 22mm / 24mmLug widths
18mm→24mmSmartlet range
How it works
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
Hamilton iconic models
Each guide covers all references, variants, lug widths, and step-by-step Smartlet installation for one specific model line.
Compatible
Hamilton
Khaki Aviation
The watch that shipped with the cockpit. Hamilton supplied military aviators for decades - the Khaki Aviation carries that heritage with a day-date complication and pilot-legible dial.
Case
40mm / 42mm / 46mm
Lug width
20mm / 22mm
Movement
Cal. H-51 / ETA 2824
References
11
Compatible
Hamilton
Khaki Field
The field watch archetype. Canvas strap, luminous dial, robust automatic movement - the Khaki Field delivers military utility in a 38mm case that wears universally.
Case
38mm - 42mm
Lug width
20mm / 22mm / 24mm
Movement
Cal. H-50 / H-10
References
16
Full database
Other Hamilton references
84 references grouped into 30 model families. All compatible. Expand any group to see variants, references, and specifications.
Accumatic
Reference
Material
Dial
Lug
Smartlet
Accumatic A-507
A507-1958
Stainless Steel
Silver
18mm
Compatible
Accumatic A-508
A508-1959
Stainless Steel
Black
18mm
Compatible
Accumatic A-655
A655-1965
Stainless Steel
Silver
18mm
Compatible
American
Reference
Material
Dial
Lug
Smartlet
HMT-ACC03
Stainless Steel
Silver
21mm
Compatible
H35445860
Stainless Steel
Blue
22mm
Compatible
Boulton
Reference
Material
Dial
Lug
Smartlet
H13431553
Stainless Steel
Silver
18mm
Compatible
Boulton Mechanical
H13519711
Stainless Steel
White Roman
18mm
Compatible
Canadian
Reference
Material
Dial
Lug
Smartlet
COD-1950
Stainless Steel
Black
18mm
Compatible
Chrono-Matic
Reference
Material
Dial
Lug
Smartlet
Chrono-Matic Cal.11
HMT-C11-1969
Stainless Steel
Black
19mm
Compatible
Chrono-Matic Cal.12
HMT-C12P-1971
Stainless Steel
White Panda
19mm
Compatible
Chronograph
Reference
Material
Dial
Lug
Smartlet
Chronograph Datematic
HMT-DTM-1975
Stainless Steel
Black
20mm
Compatible
Chronograph Fontainebleau
HMT-FONT-1969
Stainless Steel
Blue/White
22mm
Compatible
Chronograph Valjoux
HMT-7733-1968
Stainless Steel
Silver
19mm
Compatible
HMT-7733P-1970
Stainless Steel
White/Black Panda
19mm
Compatible
Circa
Reference
Material
Dial
Lug
Smartlet
Cal.643-1968
Stainless Steel
Silver
19mm
Compatible
Cal.643P-1968
Stainless Steel
White/Black Panda
19mm
Compatible
Date-O-Matic
Reference
Material
Dial
Lug
Smartlet
DOM-1964
Stainless Steel
Silver
18mm
Compatible
Day-O-Matic
Reference
Material
Dial
Lug
Smartlet
DAY-1966
Stainless Steel
Silver
19mm
Compatible
Drake
Reference
Material
Dial
Lug
Smartlet
HMT-DRK-1957
Stainless Steel
Black
18mm
Compatible
Electric
Reference
Material
Dial
Lug
Smartlet
Electric 505
H505-1959
Stainless Steel
Gold
18mm
Compatible
Electric Alden
EAL-1958
Stainless Steel
Silver
18mm
Compatible
Electric Eclipse
EEI-1961
Stainless Steel
Black
18mm
Compatible
Electric Everest
EEV-1961
Stainless Steel
Champagne
18mm
Compatible
Electric Nautilus
ENA-1963
Stainless Steel
Silver
18mm
Compatible
Electric Pacer
EPC-1957
Stainless Steel
Cream
18mm
Compatible
Electric Titan
ETN-1962
Stainless Steel
Black
18mm
Compatible
Electric Vega
EVE-1959
Stainless Steel
Silver
18mm
Compatible
Hamilton
Reference
Material
Dial
Lug
Smartlet
Hamilton GG-W-113
GGW113-1967
Stainless Steel
Black
18mm
Compatible
Hamilton MIL-W-46374B
46374B-1975
Fiberglass
Black
18mm
Compatible
Intra-Matic
Reference
Material
Dial
Lug
Smartlet
Intra-Matic 38
H38455181
Stainless Steel
Champagne
18mm
Compatible
Intra-Matic 68
H38716731
Stainless Steel
Reverse Panda
22mm
Compatible
Intra-Matic Auto
H38416711
Stainless Steel
Panda
20mm
Compatible
H38416541
Stainless Steel
Reverse Panda
20mm
Compatible
Jazzmaster
Reference
Material
Dial
Lug
Smartlet
Jazzmaster Maestro
H42515735
Stainless Steel
Black
22mm
Compatible
H32595731
Stainless Steel
Silver
22mm
Compatible
H32766513
Stainless Steel
Silver
22mm
Compatible
Jazzmaster Open
H32565555
Stainless Steel
Black Open
20mm
Compatible
H32705141
Stainless Steel
Silver Open
22mm
Compatible
Jazzmaster Performer
H36105140
Stainless Steel
Blue
20mm
Compatible
H36606130
Stainless Steel
Black
22mm
Compatible
Jazzmaster Skeleton
H42535640
Stainless Steel
Blue Skeleton
20mm
Compatible
Jazzmaster Thinline
H38511553
Stainless Steel
Blue
20mm
Compatible
Jazzmaster Viewmatic
H32515535
Stainless Steel
Silver
20mm
Compatible
Khaki
Reference
Material
Dial
Lug
Smartlet
H78505330
Titanium
Black
24mm
Compatible
H77705345
Titanium
Black
20mm
Compatible
H77515133
Stainless Steel
Black
22mm
Compatible
H82515330
Stainless Steel
Blue
22mm
Compatible
H82335131
Stainless Steel
Black
20mm
Compatible
H82315331
Stainless Steel
Blue
20mm
Compatible
H82525163
Stainless Steel/Black Ceramic
Black
22mm
Compatible
H82221110
Stainless Steel
White
18mm
Compatible
Korean
Reference
Material
Dial
Lug
Smartlet
HMT-A17-1951
Stainless Steel
Black
18mm
Compatible
LCD
Reference
Material
Dial
Lug
Smartlet
LCD-SA-1979
Stainless Steel
Green Lcd
20mm
Compatible
Lady
Reference
Material
Dial
Lug
Smartlet
H38425540
Stainless Steel
Champagne
18mm
Compatible
Newton
Reference
Material
Dial
Lug
Smartlet
HMT-NWT-1960
Stainless Steel
White
18mm
Compatible
Pan
Reference
Material
Dial
Lug
Smartlet
H357000
Stainless Steel
Blue
22mm
Compatible
HMT-PEC-2008
Stainless Steel
Blue/White Panda
22mm
Compatible
H35405741
Stainless Steel
Blue
22mm
Compatible
H35405141
Stainless Steel
Black
22mm
Compatible
Pulsar
Reference
Material
Dial
Lug
Smartlet
Pulsar Calculator
P4-1976
Stainless Steel
Red Led
18mm
Compatible
P4-CALC-1976
Stainless Steel
Red Led
18mm
Compatible
Pulsar LED
P2-1972
Stainless Steel
Red Led
18mm
Compatible
Pulsar P1
P1-1972
18K Gold
Red Led
18mm
Compatible
Pulsar P2
P2-1973
Stainless Steel
Red Led
18mm
Compatible
Pulsar P3
P3-1973
Stainless Steel
Red Led
18mm
Compatible
Pulsar P4
P4E-1975
Stainless Steel
Red Led
18mm
Compatible
QED
Reference
Material
Dial
Lug
Smartlet
QED-1975
Stainless Steel
Black
20mm
Compatible
RAF
Reference
Material
Dial
Lug
Smartlet
HMT-6B-1952
Stainless Steel
Black
18mm
Compatible
Railroad
Reference
Material
Dial
Lug
Smartlet
Railroad Approved
RR326-1956
Stainless Steel
Silver
19mm
Compatible
RR327-1960
Stainless Steel
Black
19mm
Compatible
Railroad Automatic
RR730-1965
Stainless Steel
Silver
19mm
Compatible
Railroad Day-Date
RR736-1970
Stainless Steel
Silver
19mm
Compatible
Railroad Dress
RR-1958
Stainless Steel
Silver
18mm
Compatible
Railroad Quartz
RQ-1980
Stainless Steel
White Railroad
19mm
Compatible
Railroad US-Canadian
RR-CAN-1973
Stainless Steel
White Railroad Dial
20mm
Compatible
Richmond
Reference
Material
Dial
Lug
Smartlet
HMT-RM-1962
Stainless Steel
Silver
18mm
Compatible
Stormking
Reference
Material
Dial
Lug
Smartlet
Stormking II
HMT-SK2-1958
Stainless Steel
Silver
18mm
Compatible
Stormking III
HMT-SK3-1960
Gold Filled
Champagne
18mm
Compatible
Thin-o-Matic
Reference
Material
Dial
Lug
Smartlet
Thin-o-Matic T-500
T500-1960
Stainless Steel
Silver
18mm
Compatible
Thin-o-Matic T-600
T600-1962
Gold Cap
Champagne
18mm
Compatible
US
Reference
Material
Dial
Lug
Smartlet
HMT-BU-1943
Stainless Steel
Black
18mm
Compatible
Vantage
Reference
Material
Dial
Lug
Smartlet
Vantage Diver
VNG-DV-1973
Stainless Steel
Black
19mm
Compatible
Vantage VHF
VHT-1972
Stainless Steel
Silver
18mm
Compatible
X-Wind
Reference
Material
Dial
Lug
Smartlet
HMT-XW-1998
Stainless Steel
Black
22mm
Compatible
Compatible smartwatches
Smartwatches to pair with your Hamilton
Wear your smartwatch simultaneously with your Hamilton 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 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.
