Swiss made Constant glow for up to 25 years in any light condition 44mm Always visible Water-resistant to 100m Silicone rubber strap The Leatherback Sea Turtle Giant Outdoor Watch gets its name from the design of the watch, the classic Luminox case with the proteced crown balanced by an opposite outcropping, resembles the shape of a turtle. This watch features an impressive 44mm Carbonox case and water-resistance up to 100 meters. Its proven Luminox Light Technology lighting system guarantees self-powered readability at night. ''Always Visible'' for 25 years.