H6 Hamilton Khaki Field Chronograph. Reference H71566553. Watch measures 42mm and is made from steel. Automatic movement caliber Valjoux 7750 which provides for 42 hours of power reserve. Sapphire crystals on both sides of the case. Waterproof 10ATM or 100 meters. Functions are hours, minutes, sub seconds, chronograph, day and date. This watch is fitted with the original black leather strap with steel pin buckle. Naturally this watch is complete with the original box and papers dated December 2014. Fantastic value chronograph!