The Hamilton Jazzmaster line is a cornerstone of the brand’s "American Spirit" collection, drawing its name and inspiration from the history of American jazz music. Launched as a contemporary evolution of Hamilton’s classic dress watches from the mid-20th century, the Jazzmaster was designed to blend traditional Swiss watchmaking with a soulful, artistic aesthetic. The "Open Heart" variant specifically became a modern icon for the brand by using architectural dial cut-outs to reveal the rhythmic motion of the balance wheel, effectively mirroring the improvisational and transparent nature of a jazz performance. The "Open Heart": The unique cut-outs on the dial are designed to showcase the balance wheel and escapement. It’s a great conversation starter for those who appreciate mechanical engineering. Brand - Hamilton Model - Jazzmaster Openheart Viewmatic Ref - H325651 Movement - Automatic Case size - Approx. 41 mm Wrist Size - Approx 17.5cm - Spare link(s) 2 pieces / harf link 1 pieces　 Accessories: Warranty card, Box and case　 List Code - E-00754/49B Condition ● Time adjustment OK　　　 ● Deterioration, minor Stain, Scratches, Scrubs, Dents and corrosion. ● Our pictures are of the actual item and are the best description of the condition we can show of an item. All items we sell are used, please refer to photos for condition. Customs and taxes: Your country of residence may apply extra customs duties and import taxes! Please check the laws of your country to determine if import duties or taxes are applicable. We cannot be held responsible for any expenses incurred for importing items into the purchaser's country of residence. If winning bidder decides to cancel/withdraw they will bear risk, cost of all shipping and return import duties of seller. Shipping as insured parcel with tracking number.