Tommy Bahama Relax Men's 'Kona Grand Prix Chronograph (Land)' Quartz Stainless Steel and Silicone Dress Watch, Color:Black (Model: 10018378) Japanese quartz 2-hand movement with sweeping 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