Featuring a Beige Band, Silver-tone Case, Scratch Resistant Sapphire Crystal

Automatic | 45mm | H77796535 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. Watch Reference : H77796535 Caliber : H-21-Si Collection : Khaki Aviation Movement : Automatic Case size : 45mm Dial color : Black Case material : Stainless steel Crystal : Sapphire Lug width : 22mm Lining Tanning : Mineral Power reserve : 60-hour power reserve Water Resistance : 10 bar (100m)/145 psi (328ft) Anti Reflection : Yes Open Case Back : Yes Screw Down Crown : Yes Bracelet/Strap Strap reference : H6007771101 Strap type : Cow leather Buckle type : H-Buckle Buckle width : 22mm Top Denotation : Leather Top Species : Cow Top Tanning : Vegetal Lining Species : Calf 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.