Hamilton Khaki Navy Frogman Auto

The Hamilton Khaki Navy Frogman Auto, reference H77455360, has a 41 mm steel case and a screw-down crown within a bridge-shaped crown guard. At 14.95 mm thick, the case is water resistant to 300 metres, with 20 mm lugs and a rubber strap with a pin buckle. Beneath the sapphire crystal, a green dial carries central seconds. Calibre H-10 is self-winding, with an 80-hour power reserve and a Nivachron balance spring. The strap has a waved surface that recalls the moving sea.