Hamilton

Open Heart

Reference Number :

H32705181

Series : Jazzmaster

Retail: $1,195

(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 TakeThere's a certain honesty to a watch that lets you peek under the hood. The Jazzmaster Open Heart doesn't just tell you the time; it shows you time being made. The dial is a stage, and the star is the Caliber H-10 movement, its balance wheel oscillating with a steady, life-like pulse. Those partial cutouts aren't just for show; they're a constant reminder of the hundreds of tiny, synchronized parts working in concert on your wrist. With an impressive 80-hour power reserve, this watch has stamina. It’s a reliable partner that can rest all weekend and still be ticking perfectly on Monday morning. The sleek stainless steel case and bracelet give it a modern, architectural feel, while the exposed gears provide a touch of raw, mechanical soul. It's the perfect fusion of boardroom sophistication and machine-age fascination, a conversation starter that says you appreciate both form and function in equal measure.

DescriptionA detailed examination of this timepiece reveals a case constructed from stainless steel, measuring 42mm in diameter with a thickness of 11.44mm. This housing provides water resistance up to 5 bar, which is equivalent to 50 meters or 73 psi, ensuring durability for daily wear. The front of the watch is protected by a sapphire crystal, a material renowned for its scratch resistance, offering an unobstructed view of the grey dial. The design incorporates a lug width of 22mm, facilitating a secure connection to the stainless steel bracelet. The dial itself features carefully executed cutouts, exposing portions of the underlying mechanical movement and creating the signature Open Heart aesthetic.

Powering the watch is the Hamilton Caliber H-10, an automatic three-hand movement. A significant feature of this caliber is its extended power reserve of 80 hours, a substantial duration that allows the watch to remain operational for over three days without being wound or worn. The H-10 movement is not merely functional; it also possesses decorative finishes, including intricate contrasting snail and pearled patterns that are visible through the dial apertures. The accompanying stainless steel bracelet, identified by the reference H6054251011, is equipped with a butterfly-style buckle. This clasp provides a seamless and secure fit, and the buckle width is a consistent 22mm, matching the lug width for a balanced and integrated appearance.

GenderMen

SignaturesHamilton

Country of OriginSwitzerland

Case Size42 mm

MovementAutomatic

CaliberH-10

FunctionsHours, Minutes, Seconds

Power Reserve80 Hours

Case MaterialsStainless Steel

Bezel MaterialsStainless Steel

Lug MaterialsStainless Steel

Case BackSapphire Crystal