Hamilton Jazzmaster Open Heart Auto

The Hamilton Jazzmaster Open Heart Auto, reference H32705121, has a steel case measuring 42 mm across, water resistant to 50 metres. Through the dial, part of the movement is visible alongside central seconds beneath sapphire. Self-winding calibre H-10 delivers an 80-hour power reserve. The case is 11.44 mm thick and 50 mm from lug to lug, with a see-through back, on a steel bracelet with 22 mm lugs and a butterfly clasp.