- Reference H76726530
- Caliber H-21-Si
- Collection Khaki Aviation
- Movement Automatic
- Watch Function Chronograph, Date, Day, Tachymeter
- Case size 44mm
- Thickness (mm) 14.6
- Dial color Black
- Case material Stainless steel
- Crystal Sapphire
- Lug width 22mm
- Power reserve 60 hour
- Status status_current_collection
- Water Resistance 10 bar (100m)
- Anti Reflection Yes
- Open Case Back Yes
- Screw down crown Yes
Khaki Aviation Converter Auto Chrono
Automatic | 44mm | H76726530
CHF 1,995.00
Recommended retail price (incl. VAT)







Advanced technology for the sophisticated aviator. Calculate critical conversions and metrics at a glance with the Khaki Aviation Converter Auto Chrono’s bi-directional, rotating slide-rule bezel. This high-performance tool converts units, such as feet to meters or miles to kilometers, and currency. Add in the H-21-Si automatic chronograph movement with its superior anti-magnetic silicon hairspring and this stylish 44mm pilot’s watch has everything you need for your next adventure in the sky. Featured in Tron: Ares Worn by Molly Cahill play by "Cross"
Featured in Tron: Ares Worn by Molly Cahill play by "Cross"
Advanced technology for the sophisticated aviator. Calculate critical conversions and metrics at a glance with the Khaki Aviation Converter Auto Chrono’s bi-directional, rotating slide-rule bezel. This high-performance tool converts units, such as feet to meters or miles to kilometers, and currency. Add in the H-21-Si automatic chronograph movement with its superior anti-magnetic silicon hairspring and this stylish 44mm pilot’s watch has everything you need for your next adventure in the sky.
Featured in Tron: Ares Worn by Molly Cahill play by "Cross"
Specifications
Strap
- Strap reference H6007671061
- Strap type Cow leather
- Buckle type Pin 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.

Features
-
SELF-WINDING
Wrist movements cause the inner rotor to swing, transferring energy to the mainspring, and powering your timepiece.
-
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.
-
Sapphire Crystal
Synthetic sapphire crystal is a tough scratch-resistant material, only diamonds could leave a mark.
-
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.
-
WATER RESISTANCE
Your timepiece is resistant up to 10 bar (100m) / 145 psi (328 ft).
-
KHAKI AVIATIONThe Khaki Aviation collection perfectly displays Hamilton's technical know-how when it comes to creating reliable watches for pilots and urban aviators.
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