Hamilton Jazzmaster Open Heart Auto 42mm H32705180

Hamilton Jazzmaster Open Heart Auto 42mm H32705180

The Hamilton Jazzmaster Open Heart Auto 42 mm H32705180 blends timeless elegance with modern watchmaking precision. Its silver sunray-brushed dial creates a refined appearance, while the signature open-heart aperture reveals a glimpse of the mechanical movement within.

Smoky accents enhance the depth of the dial and highlight the exposed movement in a subtle yet striking way. The brushed stainless steel bracelet completes the classic and balanced design.

At the heart of the watch is Hamilton’s automatic H-10 movement with a power reserve of up to 80 hours. The movement features a Nivachron balance spring for improved resistance to magnetic fields and enhanced accuracy. A sapphire crystal with anti-reflective coating protects the dial, while the transparent case back offers a view of the movement.

The stainless steel case measures 42 mm in diameter with a thickness of 11.4 mm. Water resistance is 5 bar (50 m) and the lug width is 20 mm.