Panerai Men's 'Luminor 1950 8 Days Chrono Monopulsante GMT Titani' Mechanical Hand Wind Titanium and Leather Dress Watch, Color:Brown (Model: PAM00311) Mechanical movement Durable sapphire crystal Case diameter: 44 mm Titanium case Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving