Hamilton Jazzmaster Open Heart 40mm Automatic Watch
How might this watch look on my wrist? A 3D representation of Hamilton Jazzmaster Open Heart 40mm Automatic Watch. Check retailer page for actual dimensions and specifications.
Scroll or drag to turn the wrist. Shown to scale on a typical men’s wrist (17.5 cm), lug to lug 46.3 mm (measured from the photo).
This 40mm timepiece features a distinctive open-worked dial that exposes the H-10 automatic movement, allowing visibility of the mechanical components at work. The silver sunray dial exhibits a brushed finish that creates subtle light play across the face. A sapphire crystal provides scratch resistance and clarity, whilst the automatic calibre offers an 80-hour power reserve for extended wear between wind-downs.
The case measures 40mm in diameter, making it suitable for a range of wrist sizes. Water resistance and case material specifications would determine its suitability for daily wear or specific activities. The open-heart design merges functional watchmaking with visual appeal, presenting both the timekeeping mechanism and contemporary aesthetics in a single piece.
The Hamilton Jazzmaster Open Heart 40mm Automatic Watch is listed on WatchShopper as a 40 mm automatic watch with a silver dial and sapphire crystal. It runs on the H-10 calibre with an 80-hour power reserve. On 18 October 2026 the lowest UK price was £1,065.00 at Beaverbrooks, in stock, with free delivery and 30-day returns. With the voucher code GET50, Beaverbrooks brings it to £1,015.00.
At £1,065 this watch is mid-priced for an automatic watch with a 38–42 mm case: 46% of the 1,510 we track from every brand cost less. 81% of the 131 Hamilton watches we track cost less than this one. This is the 16th cheapest of the 22 versions of the Jazzmaster we list.
