Amazon.com: Hamilton Jazzmaster Open Heart Automatic Women。Stylish Hamilton watch in silver. Features crystal accents. Ideal for elegance. This ladies vintage Hamilton watch features a mechanical (manual) movement, with a timeless design that exudes elegance and style. The watch is adorned with sparkling diamonds on the bezel, adding a touch of luxury to its classic look. The bracelet band is made of white gold 1/20 12k imprinted, and sterling imprinted under the clock (see photos), perfectly complementing the stunning gold case color. The Hamilton Lady Hamilton model is a perfect choice for those who appreciate vintage timepieces with a touch of glamor and sophistication. from beginning to end it is 7 inches this is a wind up watch, no batteries needed. it does work