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Wear a smartwatch with your Hamilton Khaki Aviation | Smartlet

Model compatibility

Wear a smartwatch
with your Hamilton Khaki Aviation

Hamilton's aviation heritage is not marketing — the brand supplied instruments to the US Air Force from the 1940s and the Khaki Aviation line inherits that operating logic directly. Large, legible dials. Calendar complications suited to long flights. Pilot chronographs with slide rule bezels. The X-Wind double-hemisphere calculator. These are tools that happen to work well as watches. The in-house H-51 movement, developed in Biel, delivers 80 hours of power reserve. Smartlet adds health and navigation data without changing the instrument character.

Case40mm / 42mm / 46mm

Lug width20mm / 22mm

MovementCal. H-51 / ETA 2824

Water resistance100m

Introduced1998

Smartlet compatibleYes

References

Covered references

Reference	Smartlet	Lug width	Case	Case material	Dial
HMT-AVI-1995	Compatible	20mm	40mm / 42mm / 46mm	Stainless Steel	Blue
H77615133	Compatible	22mm	40mm / 42mm / 46mm	Stainless Steel	Black
H64715885	Compatible	22mm	40mm / 42mm / 46mm	Stainless Steel	Black
H76525131	Compatible	22mm	40mm / 42mm / 46mm	Stainless Steel	Black/Orange
H76525731	Compatible	22mm	40mm / 42mm / 46mm	Stainless Steel	Blue
H77765541	Compatible	22mm	40mm / 42mm / 46mm	Stainless Steel	Black
H76205530	Compatible	20mm	40mm / 42mm / 46mm	Stainless Steel	Black
H77786933	Compatible	22mm	40mm / 42mm / 46mm	Stainless Steel	Silber
H76615530	Compatible	22mm	40mm / 42mm / 46mm	Stainless Steel	Black
H76409530	Compatible	20mm	40mm / 42mm / 46mm	Stainless Steel	Black

Smartlet compatibility

Hamilton Khaki Aviation uses 20mm lugs on 40mm references and 22mm on 42mm and 46mm references — all natively supported by Smartlet. No adapter required.

Kompatible Smartwatches

Smartwatches to pair with your Hamilton Khaki Aviation

All smartwatches below can be worn simultaneously with your Hamilton Khaki Aviation via Smartlet One.

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Same brand

Other Hamilton models

All Hamilton models below are also compatible with Smartlet One.

View all Hamilton references →

Similar models from other brands

Watch lovers who own a Hamilton Khaki Aviation also pair Smartlet with these models.

View all compatible models →

Questions

Frequently asked

Does Smartlet work with the Hamilton Khaki Aviation?+

Yes. The Khaki Aviation uses 20mm or 22mm lugs — both natively supported by Smartlet. No adapter required.

Which Hamilton Khaki Aviation references work with Smartlet?+

H77615133, H64715885, H76525131 pilot chronographs at 22mm, and H76205530, H76409530 at 20mm — all natively supported.

Does Smartlet affect the Hamilton H-51 movement?+

No. Smartlet replaces the strap only via the spring-bar slots. The H-51 movement and its 80-hour power reserve are completely unaffected.

Where can I buy Smartlet One for the Hamilton Khaki Aviation?+

Smartlet One is available at smartlet.io in Classic, Shadow, and Titanium. All finishes are compatible with Khaki Aviation references at 20mm and 22mm.