Armitron Men's 20/5142BKSV Day/Date Function Silver-Tone Bracelet Watch Mineral crystal lens; matte black dial with day/date calendar window; silver-tone luminous hands and markers; white minute track Silver-tone adjustable link bracelet; fold over clasp with double push-button safety Japanese-quartz Movement Case Diameter: 44mm Water resistant to 50m (165ft:in general, suitable for short periods of recreational swimming, but not diving or snorkeling