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Watch
Reference : H77796135
Caliber : H-21-Si
Collection : Khaki Aviation
Movement : Automatic
Case size : 45mm
Thickness (mm) : 14.85
Dial color : Black
Case material : Stainless steel
Crystal : Sapphire
Lug width : 22mm lug width
Power reserve : 60 hour
Water Resistance : 10 bar (100m)
Anti Reflection : Yes
Open Case Back : Yes
Screw Down Crown : Yes
Silicon Balance Spring : Yes
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Bracelet/Strap
Strap reference : H6057771021
Strap type : Stainless steel
Buckle type : Folding clasp
Buckle width : 20mm
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- Khaki Aviation X Wind Day Date Auto Chrono | LIMITED EDITION
Khaki Aviation X Wind Day Date Auto Chrono | LIMITED EDITION
Automatic | 45mm | H77796135
The 2018 Khaki X-Wind Auto Chrono Limited Edition is packed with technical aviation features for pilots including Hamilton’s ground-breaking drift angle calculator. Limited to just 1,918 pieces, it uses the H-21-Si, the first Hamilton chronograph movement with a silicon hairspring which has been precision certified by COSC as a chronometer.
- 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
Features
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.
![H-21-Si](https://www.hamiltonwatch.com/media/catalog/product/caliber/3.png)
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”