H32705140Ref

The 42mm Hamilton Jazzmaster Open Heart H32705140, released in 2025, features a stainless steel case with a blue aventurine-style dial and openworked details. Measuring 11.44mm thick with a 50mm lug-to-lug and 22mm lug width, it includes a sapphire crystal, exhibition case back, and 50-meter water resistance. Powered by the automatic H-10 movement with an 80-hour reserve and Nivachron balance spring, it is finished with a stainless steel bracelet.