Hamilton Khaki Field Expedition Auto

The Hamilton Khaki Field Expedition Auto, reference H70225510, has a 37 mm steel case with a screw-down crown and water resistance to 100 metres. Calibre H-10 winds automatically and keeps an 80-hour power reserve with a Nivachron balance spring. The 11.45 mm-thick case has a see-through back and a leather strap with a pin buckle at the 20 mm lugs. Central seconds appear on the textured white dial beneath a sapphire crystal.