From Longines, the Men's Hydroconquest Automatic Two Tone Bracelet Watch features:  Stainless steel Ceramic bezel Sunray black dial Automatic movement Gilt hands Double safety folding clasp and integrated diving extension Applied Arabic numerals and indexes Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides Self-winding mechanical movement beating at 25,200 vibrations per hour, with a power reserve of approx. 72 hours Screw-in crown, unidirectional rotating bezel Screw-down case back Swiss Super-LumiNova Case size approx. 41mm Water-resistant up to 30 bar Swiss made Imported.