Hamilton Khaki Aviation Pilot Day Date Auto

The Hamilton Khaki Aviation Pilot Day Date Auto, reference H64635550, has a 42 mm steel case and water resistance to 100 metres. A calfskin strap with a pin buckle sits at the case's 20 mm lugs; the case measures 12.1 mm thick and has a see-through back. Calibre H-30 is self-winding, with a Nivachron balance spring and an 80-hour power reserve. The silver dial carries enlarged numerals, a day-date window and central seconds under a sapphire crystal.