Tommy Bahama Men's 10018305 Kona Grand Prix Chronograph Analog Display Japanese Quartz Black Watch Japanese quartz chronograph movement with sweeping second-hand and date, high grade solid stainless link bracelet with solid stainless-steel fold-over closure with safety 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: 45mm Water resistant to 330 feet