Hamilton Khaki Field Expedition Auto

The Hamilton Khaki Field Expedition Auto, reference H70225940, has a 37 mm steel case water resistant to 100 metres. The 11.45 mm thick case has a screw-down crown and see-through back, on a textile strap with 20 mm lugs and a pin buckle. The blue sandblasted dial shows central seconds beneath a sapphire crystal. Self-winding calibre H-10 keeps an 80-hour power reserve with a Nivachron balance spring.