- Reference H76746140
- Caliber H-21-Si
- Collection Khaki Aviation
- Movement Automatic
- Case size 44mm
- Thickness (mm) 14.6
- Dial color Blue
- Case material Stainless steel
- Crystal Sapphire
- Lug width 22mm lug width
- Power reserve 60 hour
- Status Current collection
- Water Resistance 10 bar (100m)
- Anti Reflection Yes
- Open Case Back Yes
- Screw Down Crown Yes
- Silicon Balance Spring Yes
Khaki Aviation Converter Auto Chrono
Automatic | 44mm | H76746140
Navigate the skies with our Khaki Aviation Converter Auto Chrono equipped with a bi-directional, rotating slide-rule bezel to calculate critical conversions and metrics at a glance. Fitted with the H-21-Si movement with silicone hairspring for increased performance and accuracy, this pilot watch blends function and aviation aesthetics to perfection: its 44mm stainless steel case is paired with a stainless steel bracelet and a blue dial evoking visions of clear skies.
Specifications
Strap
- Strap reference H6057671021
- Strap type Stainless steel
- Buckle type Folding clasp
- Buckle width 22mm
Movement
H-21-Si
The H-21-Si is an automatic 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 powerful caliber reliably keeps and measures time via two or three sub dials at 6, 9 and/or 12 o’clock, and start/stop and reset pushers on the side.
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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SELF-WINDING
Wrist movements cause the inner rotor to swing, transferring energy to the mainspring, and powering your timepiece.
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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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H-21-Si CALIBER
A powerful automatic chronograph movement featuring an extended 60-hour power reserve. Equipped a state-of-the-art balance spring made from the anti-magnetic material silicon.
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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.