Hamilton

Open Heart Auto

Reference Number :

H32705842

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 TakeMore than just a time-telling device, the Jazzmaster Open Heart is a conversation starter strapped to your wrist. It’s for the person who appreciates that true substance lies just beneath the surface. The dial isn't just blue; it's a stage. The cutouts act as a permanent backstage pass, offering a glimpse into the kinetic ballet of the escapement and balance spring doing their tireless work. You don't just see the time; you see time being made. This watch doesn't need to shout for attention. Its confidence comes from the H-10 movement, a powerhouse that keeps ticking for an entire long weekend and then some, long after you've taken it off. It’s a reliable partner. The cool steel case and the textured strap complete a package that feels both mechanically sophisticated and effortlessly stylish, a perfect paradox for the modern connoisseur who enjoys the intricate details that others might miss.

DescriptionThis timepiece is constructed around a 42mm stainless steel case with a measured thickness of 11.44mm. The front of the watch is protected by a scratch-resistant sapphire crystal, ensuring a clear view of the blue dial. This dial is distinguished by its unique open-heart design, featuring precisely executed cutouts that expose components of the mechanical movement beneath. For legibility in various conditions, the watch incorporates applied hour markers and Dauphine-style hands. The case architecture provides a water resistance rating of 5 bar, equivalent to 50 meters or 164 feet, making it suitable for everyday exposure to moisture but not for submersion. The lugs are spaced at 22mm to accommodate the accompanying strap.

At the core of the H32705842 operates the Hamilton Caliber H-10, an automatic, self-winding three-hand movement. A significant feature of this caliber is its extended power reserve, which is capable of sustaining 80 hours of operation when fully wound. This enhanced autonomy is a practical advantage for users who may rotate watches throughout the week. The visible portions of the movement, as seen through the dial's apertures, are finished with intricate contrasting snail and pearled patterns, showcasing the level of detail within. The watch is secured to the wrist by a strap (reference H6003271131) that terminates in a 20mm stainless steel folding clasp, providing a secure and convenient fit. As of this documentation, this reference is part of a past collection.

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