Girard Perregaux Men's Worldtimer WWTC Watch

Swiss automatic movement Perregaux luxury watch features World-Wide Time Control function A men's gold watch with 18-karat rose gold case and clasp Brown leather strap Grey dial with chronograph Date display at 1 o'clock Synthetic sapphire crystal Screw-down crown Water resistant Swiss made Display back Case dimensions: 44 mm in diameter Strap dimensions: 20 mm wide x 8 inches long All measurements are approximate and may vary slightly from the listed information. Watch bands fit 7.0-inch to 8.0-inch wrists. This watch is powered by automatic movement which means the winding of the spring occurs automatically when the wearer moves his/her arm. However, it is recommended that you manually wind the watch at least once every two weeks. It is also important to adjust the time once a month as automatic movement can gain or lose a few minutes per month. This watch has a screw-down crown (knob) for setting the time. Screw-down crowns create a stronger seal against the case than a push-and-pull knob, giving the watch a greater water resistance factor. To unscrew the crown, grasp the knob and turn it counter-clockwise (towards you) a number of times until it releases. Then pull or push the crown into position to set the time, date, and other functions. To close the crown, press it against the case while turning in a clockwise direction.