Luminox Sport Timer 0910 Xs. 0911 pairs Swiss-made quartz precision with constant night readability. It is built for daily wear and marine activities, featuring sapphire crystal and Luminox Light Technology. Key attributes: Silver | Black | White | Stainless steel 316L | Water resistant to 100 m (10 bar) | Luminox Light Technology with self-powered micro gas tubes for constant night readability | Sapphire crystal with anti-reflective coating | Swiss quartz movement (Ronda 515) | Date display | Analog hour, minute, second | Screw-down stainless steel case back | Protected crown with double seal | Fixed stainless steel bezel with aluminium ring | Black dial with sunray effect | Round case | Matte case finish | Partially matte link bracelet | Black bezel with white minute scale | Dimensions & fit: Case diameter: 42 mm | Case height: 13 mm | Bracelet width: 24 mm | Max wrist circumference: approx. 21 cm | Weight: approx. 160 g | Max wrist circumference approx. 21 cm | Composition & care: Stainless steel 316L (case) | Stainless steel (partially matte link bracelet) | Sapphire crystal with anti-reflective coating | Aluminium (bezel ring) | Wipe with a soft cloth. Avoid strong impacts and contact with chemicals. Have battery and seals serviced by an authorised service centre.