Hamilton Jazzmaster Power Reserve Auto 42mm Watch hide-price The open caseback proudly displays

The open caseback proudly displays the fine Swiss made 26-jewel automatic movement

Experience the elegance and allure of nature on your wrist

a hallmark of Longines' watches

9 and 12 o'clock positions

This model features a champagne dial with a silk-like pattern and an opaline finish

Hamilton Jazzmaster Power Reserve Auto 42mm Watch hide-price The open caseback proudly displaysWhen tradition meets innovation, the results are rarely so harmonious. The Jazzmaster Power Reserve uses simple design outside to balance the strength of the new H 13 movement inside. Only the power reserve scale hints at the stamina of the 80 hour reserve this model offers. For the Jazzmaster Power Reserve, Hamilton created the new H 13 movement with extended 80 hour power reserve, which is displayed on the dial through the power reserve indicator.