Jacques Lemans Men's Swiss Quartz Stainless Steel Casual Watch, Color:Silver-Toned (Model: GU188E) Precise Swiss-quartz movement Scratch-resistant-sapphire crystal Case diameter: 45 mm Two-tone-Stainless-steel case; black dial; date function; chronograph functions Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving