KHAKI AVIATION X WIND DAY DATE AUTO CHRONO | LIMITED EDITION

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.

Features

• 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
  Power reserve : 60 hour
  Water Resistance : 10 bar (100m)/145 psi (328ft)
  Anti Reflection : Yes
  Open Case Back : Yes
  Screw Down Crown : Yes
  Silicon Balance Spring : Yes

• BRACELET/STRAP

  Strap reference : H6057771021
  Strap type : Stainless steel
  Buckle type : Folding clasp
  Buckle width : 20mm

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.