Let precision take center stage with the 40mm Jazzmaster Open Heart and its smoky burgundy cut-out dial, revealing the subtle beauty of this timepiece's inner mechanics. Bringing the H-10-S automatic movement into the spotlight, with an 80 hour power reserve and Nivachron™ balance spring, the Jazzmaster Open Heart is fitted with an intricate stainless steel bracelet, showcasing Hamilton's ever-evolving craftsmanship and attention to detail.
JAZZMASTER OPEN HEART
A vibrant smoked dial draws the eye inward to the precision cutouts of the Jazzmaster Open Heart.
CELEBRATING CRAFTSMANSHIP
Offering a captivating glimpse at the movement underneath, its contemporary style is both unique and versatile.
Wrist movements cause the inner rotor to swing, transferring energy to the mainspring, and powering your timepiece.
STAINLESS STEEL CASE
A highly resistant alloy composed of steel and chromium. It can be worked to resemble a precious metal. It is nearly impervious to rust, tarnish, and corrosion.
SAPPHIRE CRYSTAL
Synthetic sapphire crystal is a tough scratch-resistant material, only diamonds could leave a mark.
NIVACHRON™ BALANCE SPRING
Nivachron™ is an alloy used to produce balance spring to resist magnetic fields and improve accuracy. It reduces the effects of magnets, temperature, and shocks.
H-10 CALIBER
A three-hand automatic movement boasting a superior power reserve of 80 hours and featuring a Nivachron™ balance spring.
WATER RESISTANCE
Your timepiece is resistant up to 5 bar (50m) / 73 psi (164 ft).