Hamilton Jazzmaster Open Heart Auto

The Hamilton Jazzmaster Open Heart Auto, reference H32675570, has a 40 mm steel case water resistant to 50 metres. Under sapphire, the smoky bordeaux dial carries central seconds around cut-outs exposing the movement. A see-through back closes the 11.05 mm-thick case, whose 20 mm lugs connect to a calfskin strap with a pin buckle. Self-winding calibre H-10 has an 80-hour power reserve and a Nivachron balance spring.