Hamilton Khaki Field Expedition Auto

The Hamilton Khaki Field Expedition Auto, reference H70315830, has a 41 mm steel case, a screw-down crown and water resistance to 100 metres. Behind a sapphire crystal, the black dial has a textured surface and central seconds. A see-through back closes the 11.5 mm thick case, worn on a leather strap with 20 mm lugs and a pin buckle. Automatic winding in calibre H-10 sustains an 80-hour power reserve, with regulation by a Nivachron balance spring.