Luminox Leatherback Sea Turtle Giant is a robust 44 mm timepiece built for on- and off-water use. It pairs a lightweight CARBONOX™ case with Luminox Light Technology for long-lasting visibility in low light. Key attributes: Black | Blue | CARBONOX™ | Water resistant to 10 ATM / 100 m | Luminox Light Technology — constant luminescence up to 25 years | Swiss Made Ronda 515 quartz movement | Date display at 3 o'clock | Unidirectional rotating bezel | Pin buckle closure | 44 mm round case | Blue dial | Black CARBONOX case | Unidirectional bezel with Super?LumiNova marker at 12 o'clock | Protected crown with double gasket | Dimensions & fit: Case diameter 44 mm | Case height 12 mm | Band width 22 mm | Weight ca. 50 g | Composition & care: CARBONOX™ | Hardened mineral glass | Silicone | Stainless steel (316L) | Wipe clean with a soft cloth. Avoid strong chemicals and impacts. Have battery replacement and service performed by an authorized service center. Do not operate the crown underwater.