Hamilton Khaki Aviation Converter Auto Chrono

The Hamilton Khaki Aviation Converter Auto Chrono, reference H76726530, is a 44 mm steel chronograph with a screw-down crown. The bi-directional rotating slide-rule bezel performs unit and currency conversions beside the sapphire-covered black dial with day, date and tachymeter scale. Measuring 14.6 mm thick, the case is water resistant to 100 metres, with a see-through back and a leather strap with a pin buckle at its 22 mm lugs. Self-winding calibre H-21-Si keeps a 60-hour power reserve.