Hamilton Khaki Field Mechanical Power Reserve 40mm

The Hamilton Khaki Field Mechanical Power Reserve 40mm, reference H69509910, presents a white dial in a 40 mm steel case water resistant to 100 metres. Its sapphire-covered display carries central seconds beside a power reserve indicator marked F for full or E for empty. Hand-wound calibre H-23 keeps an 80-hour reserve and regulates with a Nivachron balance spring. The case measures 11.95 mm thick and 48 mm from lug to lug, on a textile strap with 20 mm lugs and a pin buckle.