SUBMARINER DATE 40MM

Dial diameter: 40 mm. Material: 904L stainless steel. Monocoque midshell. Screw-down case back and winding crown. Unidirectional rotatable 60-minute graduated bezel. Ceramic scratch-resistant porcelain insert. Platinum-coated numerals and graduations. Triple interlocking triple waterproof system. Mirror Material: Scratch Resistant Sapphire. Highly clear chromatic display with persistent blue glow. Water resistant to 300 meters/1,000 feet. Permanent, mechanical, self-winding movement. Functions: central hours, minutes and seconds. Instant date for quick settings. Stop seconds for precise time setting. Permanent rotor bi-directional self-winding. About 48 hours of power reserve.