Hamilton Jazzmaster Open Heart Auto

The Hamilton Jazzmaster Open Heart Auto, reference H32215840, has a 36 mm steel case water resistant to 50 metres. A cut-out in the blue dial reveals the movement, with central seconds beneath a sapphire crystal. At 10 mm thick and 42 mm from lug to lug, the case has a see-through back, on a leather strap with 18 mm lugs and a pin buckle. Self-winding calibre H-10 maintains an 80-hour power reserve.