How it felt to be an early aviator, a pioneering pilot flying an airplane at the turn of the twentieth century is something that can’t be recreated, but Hamilton can give you the look - created using modern materials including stainless steel and sapphire crystal. Add an automatic movement and a perfectly proportioned 42mm case for a new take on a vintage timepiece
- Reference H64645131
- CaliberH-40
- CollectionKhaki Aviation
- MovementAutomatic
- Watch FunctionDate, Day
- Case size42mm
- Thickness (mm)12.15
- Dial colorBlack
- Case materialStainless steel
- CrystalSapphire
- Lug width20mm
- Power reserve80 hour
- StatusCurrent collection
- Water Resistance10 bar (100m)
- Anti ReflectionYes
- Open Case BackYes
- Strap referenceH6056461031
- Strap typeStainless steel
- Buckle typeFolding clasp
- Buckle width18mm
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H-40
With an extended power reserve of up to 80 hours, the H-40 is both beautiful and bold. Almost double than market standard, 80 hours power reserve means you can remove your watch on Friday and it will still be ticking on Monday.

