Offering a glimpse of its powerful inner mechanics, the Jazzmaster Open Heart lets precision take center stage. Featuring a captivating midnight blue dial that sparkles, this showstopping timepiece fuses the modernity of urban architechture with the infinity of the cosmos. Showcasing Hamilton's ever-evolving craftsmanship and attention to detail, the dial brings the H-10 automatic movement into the spotlight. With its 80 hour power reserve and Nivachron™ balance spring, the Jazzmaster Open Heart Auto is fitted with an elegant blue leather strap.
AVENTURINE DIAL UNVEILED
Discover the brilliance of the new Jazzmaster Open Heart, now with a stunning aventurine-inspired dial.
PERFECTLY PROPORTIONED
Available in 36mm for Refinement and 42mm for Presence.
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).