Hamilton Khaki Aviation X-Wind Day Date Auto Chrono 45MM Watch

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.

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
• Caliber: H-21-Si
• Case Size: 45mm
• Dial Colour: Black
• Crystal: Sapphire
• Lining Tanning: Mineral
• Power Reserve: 60-hour
• Water Resistance: 10 bar (100 metres)
• Anti Reflection
• Open Case Back
• Screw Down Crown