Jazzmaster Open Heart Auto 42mm Blue Aventurine Dial

A blue aventurine dial gives the Hamilton Jazzmaster Open Heart Auto, reference H32705640, a deep, speckled surface, with an open-heart aperture revealing the balance. The 42 mm stainless steel case has a fixed bezel, and luminous hands and markers help legibility. The case is 14.95 mm thick.

The automatic H-10 movement offers up to 80 hours of power reserve and shows through the see-through case back. A sapphire crystal covers the dial, and water resistance is 50 meters. The calf leather strap is 22 mm wide with a pin buckle. It suits those who want a dressier watch with a distinctive dial and a visible movement.