Rip Curl Men's A1105 - GUN K55 "Tidemaster" Stainless Steel Gunmetal Watch Corrosion- and rust-resistant surf watch in gunmetal-tone stainless steel featuring monochromatic dial with two sub-dials and tide-pattern information 44 mm case with mineral dial window Quartz movement with analog display Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving