Hamilton

Open Heart Auto

Reference Number :

H32705541

Series : Jazzmaster

Retail: $1,145

(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 just tell time; this Hamilton Jazzmaster lets you watch time happen. The undeniable focal point is the intricate cutaway on the rich blue dial, offering a captivating peek into the mechanical soul of the timepiece. It provides a front-row seat to the steady, rhythmic pulse of the escapement, a constant mechanical heartbeat driven by the formidable H-10 automatic movement. Possessing a remarkable 80-hour power reserve, this watch can be set aside for an entire weekend and will be ticking perfectly upon your return. The 42mm stainless steel case asserts a confident yet sophisticated presence, beautifully complemented by the warm texture of the brown calf leather strap. This is a watch that sparks dialogue, perfectly marrying classic Swiss precision with a distinctly bold design ethos. It doesn't merely rest on your wrist; it performs, presenting a dynamic spectacle of the complex interplay of gears and jewels that brings it to life.

DescriptionThe watch, identified by reference H32705541, is fabricated with a stainless steel case that measures 42mm in diameter and has a total thickness of 11.44mm. Its architecture specifies a 22mm lug width for strap integration. Protecting the dial is a sapphire crystal enhanced with an anti-reflection treatment to maximize readability. The rear of the case is an open design, also sealed with sapphire crystal, which allows for an unobstructed view of the movement within. This construction achieves a water resistance rating of 5 bar, which is functionally equivalent to 50 meters or 73 pounds per square inch, rendering the timepiece resistant to splashes and brief encounters with water. A blue dial provides a colored foundation for the watch's hands and indices, prominently featuring the signature cutaway design.

Powering the timekeeping functions is the Caliber H-10, a self-winding mechanical movement. This engine provides an extended power reserve of 80 hours, ensuring continuous operation for more than three days without winding. The H-10 caliber is distinguished by its intricate surface decorations, including contrasting snail and pearled patterns that are visible through both the dial aperture and the exhibition case back. The watch is affixed to the wrist with a calf leather strap, part number H6003261171, which is fastened by a 20mm-wide folding clasp. This combination of components from the Jazzmaster collection results in a technically proficient and aesthetically detailed horological instrument.

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