Hamilton Khaki Field Expedition Auto

The Hamilton Khaki Field Expedition Auto, reference H70225830, has a 37 mm steel case water resistant to 100 metres, with a see-through back. The 11.45 mm-thick case has a screw-down crown and sits on a calfskin strap with 20 mm lugs and a pin buckle. An 80-hour power reserve is held by self-winding calibre H-10, regulated by a Nivachron balance spring. The textured black dial shows central seconds under sapphire crystal.