- 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 express delivery 2-3 working days
- 2 Years International Warranty
- Easy returns within 30 days | No returns on engraved watches
- Customer Service: 0818 00 1892 | Contact us
Delivery & Return
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Delivery
We offer complimentary express delivery for all watch purchases. Place your order today and get it delivered within 48 to 72 hours. All our orders are dispatched from Switzerland. Please note that all the delivery duties are included with your order. To find out more information about our delivery please visit “Delivery"
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Return
We offer easy returns within 30 days from delivery. For more information, please visit “Returns & Exchanges”
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.