Hamilton Khaki Field Mechanical Power Reserve 40mm

The Hamilton Khaki Field Mechanical Power Reserve 40mm, reference H69509110, has a 40 mm steel case water resistant to 100 metres. Beneath sapphire, the white dial carries central seconds and a power reserve indicator marked F for full and E for empty. Measuring 11.95 mm thick and 48 mm from lug to lug, the case sits on a steel bracelet with 20 mm lugs and a folding clasp. Hand-wound calibre H-23 maintains an 80-hour reserve with a Nivachron balance spring.