olex Perpetual Oyster Perpetual 36 Watch of Stainless Steel. Steel dial with index hour markers. Screw-down solid crown with twin lock double waterproofness system. Scratch-resistant sapphire crystal. The watch has a central hour, minute and second hands. Stop-seconds for precise time setting. The Stainless Steel Domed bezel. The Watch comes with Mechanical Self-winding Movement & 3130 Caliber w/ 31 jewels & 48hours power reserve. The Stainless Steel Oyster bracelet with flat three-piece links, folding Oysterclasp buckle.