HAMILTON Jazzmaster Open Heart 42mm H32705140

The Jazzmaster Open Heart offers a glimpse into the powerful mechanism and puts precision centre stage with a new 42mm dial. With a captivating, sparkling midnight blue dial, this striking timepiece melds the modernity of urban architecture with the infinity of the cosmos. The dial showcases Hamilton’s ever-evolving craftsmanship and attention to detail, and puts the spotlight on the H-10 automatic movement. The Jazzmaster Open Heart Auto features an 80-hour power reserve, a Nivachron™ balance spring and a refined bronze bracelet.

The H-10 is a three-hand automatic movement that can include a date function. With an extended power reserve of 80 hours and in some cases equipped with a balance spring made from the precious, anti-magnetic alloy NivachronTM, the watches in our collections ensure consistent and accurate timekeeping.