Hamilton Jazzmaster Open Heart Auto 40mm

The Hamilton Jazzmaster Open Heart Auto 40mm, reference H32675141, has a 40 mm steel case with a see-through back, rated water resistant to 50 metres. Self-winding calibre H-10 holds an 80-hour power reserve and regulates with a Nivachron balance spring. Case thickness is 11.1 mm, on a steel bracelet with 20 mm lugs and a butterfly clasp. The sapphire-covered blue dial combines central seconds with white accents and smoky cut-out openings that reveal the movement.