Hamilton Jazzmaster Open Heart Auto watch with brown dial and brown leather strap, 42 mm

The Jazzmaster Collection: Balance and Mechanical Expression

The Jazzmaster collection embodies one of the most iconic lines of the Hamilton Maison. It reflects demanding Swiss watchmaking expertise, enhanced by an American sensibility focused on accessible, enduring elegance. Each model stands out for its well-balanced proportions, refined legibility and timeless design, created to accompany the years with effortless sophistication.

The Open Heart version adds an additional dimension to this aesthetic: mechanical transparency. By revealing the movement, it affirms that horological precision is not meant to be concealed — it is meant to be displayed, with subtlety and confidence.

Jazzmaster Open Heart 42 mm: Warmth and Depth

In this 42 mm interpretation, the Jazzmaster Open Heart features a sunray-brushed brown dial enhanced by a smoked gradient effect that intensifies its depth. The warm tone shifts beautifully with the light, creating elegant and sophisticated nuances. Gold-tone indexes and hands provide contrast and clarity while reinforcing the refined character of the design.

The asymmetrical aperture reveals the heart of the Swiss automatic movement, beating with precision and offering an impressive 80-hour power reserve. The transparent case back allows the architecture of the calibre to be admired, extending the mechanical experience.

The stainless steel case, protected by a scratch-resistant sapphire crystal, frames the dial harmoniously. Paired with a rich brown leather strap, this Jazzmaster expresses natural and confident elegance — a timepiece perfectly suited to evening occasions and refined settings where detail becomes a signature.