Jazzmaster Open Heart

The Hamilton Jazzmaster Open Heart brings a contemporary twist to classic American watchmaking, showcasing its Swiss-made automatic movement through a distinctive cutaway dial. This model appeals to collectors who appreciate visible mechanics without sacrificing everyday elegance, making it a talking point at both the office and formal occasions. The openwork design isn’t just aesthetic—it highlights Hamilton’s commitment to pairing heritage with innovation in their modern lineup.

Reference numbers such as H32565555 (silver dial, leather strap) and H32565155 (silver dial, bracelet) are the most sought-after, with dial color and strap choice being the main drivers of price differences. Limited variants occasionally appear with blue or black dials, often commanding a premium. All share the well-finished 40mm stainless steel case and display the movement—typically the H-10 caliber with its 80-hour power reserve—through the dial’s apertures and a sapphire caseback.

When considering a Jazzmaster Open Heart, check for original box and papers, as full sets tend to hold value better. Earlier models may have a slightly different dial layout or power reserve, so confirm the movement (the H-10 is preferred for its longevity). Water resistance is rated at 50 meters, suitable for daily wear but not for swimming. This is a model where condition, dial color, and strap originality matter most to value-conscious collectors.