- Reference H76746540
- Caliber H-21-Si
- Collection Khaki Aviation
- Movement Automatic
- Case size 44mm
- Dial color Blue
- Case material Stainless steel
- Crystal Sapphire
- Lug width 22mm
- Power reserve 60 hour
- Status Current collection
- Water Resistance 10 bar (100m)/145 psi (328ft)
- Anti Reflection Yes
- Open Case Back Yes
- Screw Down Crown Yes
- Silicon Balance Spring Yes
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 brown leather strap and a blue dial evoking visions of clear skies.
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 brown leather strap and a blue dial evoking visions of clear skies.
Specifications
Strap
- Strap reference H6007671081
- Strap type Cow leather
- Buckle type H-Buckle
- 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
- Complimentary gift box available at checkout (excludes watches with specialty boxes)
- Free Next-Day Shipping
- 2-Year International Warranty
- Contact us: 1-800-234-8463 | Send us a message
Delivery & Return
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Delivery
We offer free delivery for all orders. If you would like your order to arrive sooner you can select “Next-Day Delivery” (rates vary by location). To find out more information about our delivery options please visit our Shipping Policy.
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Return
We offer returns within 14 days from delivery. For more information, please visit our Return Policy.
If you have an item that you would like to return, please contact our customer service department at 1-800-234-8463 or Write us.
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.
4.5/5
Overall rating | 2 reviews
I would like to see the second hand more function in the chrono models and leave the chrono in the secondary level.
Christopher M.
November 15, 2023
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