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.
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
Power reserve : 60_power
Water Resistance : 100_meters
Anti Reflection : Yes
Open Case Back : Yes
Screw Down Crown : Yes
Silicon Balance Spring : Yes
Bracelet/Strap
Strap reference : H6057671021
Strap type : Stainless steel
Buckle type : folding_clasp
Buckle width : 22_buckle
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.