Hamilton

Opean Heart

Reference Number :

H32565155

Series : Jazzmaster

Retail: $1,095

(As of: 07/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Hamilton. If you are interested in selling this watch to us, you can contact us here.

Quick TakeSome watches have a secret, a quiet mechanical soul humming away unseen. The Jazzmaster Open Heart, however, wears its heart on its sleeve—or rather, right on its dial. It dispenses with the mystery, choosing instead to put on a show. The precisely executed cuts in the silver dial are not just windows; they are invitations to stare, to appreciate the beautiful complexity of the Swiss-made H-10 movement as it performs its temporal ballet. Watching the balance wheel oscillate is a mesmerizing, tangible connection to the art of watchmaking. The 40mm case provides a perfect stage, assertive enough to be noticed but refined enough for any setting. Paired with a solid stainless steel bracelet, it has a cohesive and engineered feel. And with an 80-hour power reserve, it’s more than just a pretty face; it's a reliable partner that’s ready to perform long after others have wound down. This watch is for the individual who finds beauty in function and art in mechanics.

DescriptionThe Hamilton Jazzmaster Open Heart, designated by reference number H32565155, is built around a stainless steel case with a diameter of 40mm and a profile thickness of 10.8mm. Its structural integrity provides water resistance to a pressure of 5 bar, which corresponds to a depth of 50 meters or 73 pounds per square inch. Protecting the dial is a sapphire crystal, a material selected for its high resistance to scratching and its exceptional transparency. The timepiece features an open case back, affording a secondary view of the internal mechanism. A lug width of 20mm is specified for the interface between the case and the strap, accommodating the designated stainless steel bracelet.

Powering this watch is the Caliber H-10, an automatic, self-winding movement. This three-hand caliber is engineered to provide a substantial power reserve of 80 hours. The movement's architecture is a key element of the watch's visual identity, with portions visible through the distinct cutouts on the dial. As implemented in the American Classic collection, the H-10 is adorned with decorative finishes, including intricate snail and pearled patterns. These details are deliberately showcased through the open-heart design, which exposes the rhythmic motion of the balance wheel and escapement, transforming a functional component into a primary aesthetic feature.

GenderMen

SignaturesHamilton

Country of OriginSwitzerland

Case Size40 mm

MovementAutomatic

CaliberH-10

FunctionsHours, Minutes, Seconds

Power Reserve80 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSapphire Crystal