Tommy Bahama Men's 10018308 Kona Grand Prix Sub-Second Analog Display Japanese Quartz Brown Watch Japanese quartz 2-hand movement with sweeping sub-second hand, soft & comfortable silicone strap with solid stainless-steel buckle 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: 45mm Water resistant to 330 feet