Hamilton Jazzmaster Open Heart

The defining feature of the Jazzmaster Open Heart is its dial, which showcases a portion of the watch's intricate mechanical movement through an aperture or "open heart" at the center. This design allows wearers to glimpse the inner workings of the watch, offering a glimpse into the craftsmanship and precision engineering that powers it.

The watch typically features a stainless steel 40mm case with a sapphire crystal, offering durability and scratch resistance. The dial often comes in various colors, allowing for personalization and style versatility. Additionally, it usually includes indices or numerals for hour markers and luminescent hands for enhanced readability in low-light conditions