Tommy Bahama Men's 10018315 Big Island Diver Analog Display Japanese Quartz Brown Watch Japanese quarts 2-hand automatic movement with sweeping second sub-dial, high grade genuine grain leather calfskin strap with a solid stainless steel buckle closure and keeper High grade, stainless-steel case, caseback and crown, durable k1 mineral glass crystal & water-resistant to 100m (330 feet), and all with a 5-year limited warranty Japanese-quartz movement Case diameter: 50mm Water resistant to 330 feet