submariner date40 mm in steelThe Oyster Perpetual Submariner is the quintessential divers’ watch, the benchmark in its genre. Introduced in 1953 during the pioneering era for scuba diving, it was the first watch to be water-resistant to 100 metres (330 feet). This iconic timepiece has since evolved with a series of patented Rolex technical innovations, guaranteeing its reliability and precision down to depths of 300 metres (1,000 feet). At home in the oceans, where it remains an indispensable instrument for every diver, the Submariner has also conquered terra firma as the watch of action with a rugged elegance of its own. The Submariner is available with and without date function.blue luminescenceThe Chromalight display on the dial is an innovation that pushes the boundaries of visibility in dark environments. The blue glow lasts up to eight hours with a uniform luminosity throughout, practically twice as long as that of standard luminescent materials.The Submariner CollectionCASE 40 mm904L steelWaterproof to 300 metres / 1,000 feetTriplock winding crown with triple waterproofness systemMOVEMENT Mechanical, self-winding.