- Reference H76409540
- Caliber H-51-Si
- Collection Khaki Aviation
- Movement Mechanical
- Watch Function Power reserve, Chronograph
- Case size 40mm
- Thickness (mm) 14.35
- Dial color Blue
- Case material Stainless steel
- Crystal Sapphire
- Lug width 22mm lug width
- Power reserve 60 hour
- Status status_current_collection
- Water Resistance 10 bar (100m)
- Anti Reflection Yes
- Super Luminova Yes
- Silicon Balance Spring Yes
Khaki Aviation Pilot Pioneer Mechanical Chrono
Mechanical | 40mm | H76409540






Rugged and reliable, the Khaki Pilot Pioneer Mechanical Chronograph pays homage to Hamilton's vintage military aviation watches. Powered by our exclusive hand-wound H-51-Si movement, this timepiece boasts a 60-hour power reserve and a stunning Aviation Blue dial with a sunray finish.
Specifications
Strap
- Strap reference H6000001981
- Strap type Cow leather
- Buckle type H-Buckle
- Buckle width 22mm
Movement
H-51-Si
The H-51-Si is a mechanical chronograph movement featuring a state-of-the-art balance spring made from the anti-magnetic material silicon for enhanced resistance to extreme atmospheric conditions. With an extended 60-hour power reserve, this hand-wound caliber keeps and measures time via an iconic dial complete with start/stop and reset pushers. With no rotor and no date function, this interactive movement brings modern reliability and precision to signature, vintage-inspired design.

Information
- Free return within 14 days
- Express delivery within 24 - 48 hours
- Payment by Visa, MasterCard or Apple Pay
- 2-year international warranty
- Customer service : +32 2 558 38 97 from Monday to Friday from 9 am to 5 pm
Delivery & Return
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Delivery
We offer free express delivery on all watch orders. Place your order today and receive it within 24 to 48 working hours. If you would like to order a bracelet only, delivery will cost you €5 and receive it within 24 to 48 working hours. For more information on our delivery options, please see "Delivery and returns".
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Return
We offer free returns within 14 days from delivery. For more information, please visit “Returns Policy”
Features
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MANUAL WINDING
Wind your mechanical watch by turning the crown clockwise until it blocks.
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SUPER-LUMINOVA®
Super-LumiNova is a type of luminescent material applied to hands, dials and bezels to make them visible in the dark.
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STAINLESS STEEL CASE
A highly resistant alloy composed of steel and chromium. It can be worked to resemble a precious metal. It is nearly impervious to rust, tarnish, and corrosion.
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Sapphire Crystal
Synthetic sapphire crystal is a tough scratch-resistant material, only diamonds could leave a mark.
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SILICON BALANCE SPRING
Silicon balance springs offer various advantages: immune to magnetic fields, temperature fluctuations, oxidation, aging, shocks, and maintains shape stability.
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WATER RESISTANCE
Your timepiece is resistant up to 10 bar (100m) / 145 psi (328 ft).
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KHAKI AVIATIONThe Khaki Aviation collection perfectly displays Hamilton's technical know-how when it comes to creating reliable watches for pilots and urban aviators.