The Rolex Steel Submarine NO Date combines professional-grade engineering with timeless design. Its 41 mm Oystersteel case houses the robust calibre 3230 automatic movement, delivering approximately 70 hours of power reserve. The unidirectional rotatable bezel features a black Cerachrom insert with platinum-coated numerals for enhanced legibility and durability. A scratch-resistant sapphire crystal protects the black dial, while the screw-down crown with Triplock triple waterproofness system ensures reliable sealing to 300 meters. The Oyster bracelet features flat three-piece links and an Oysterlock folding buckle with Glidelock extension system for secure, adjustable wear. Built for those who demand precision and reliability in every environment.