The Leatherback Sea Turtle Giant watch gets its name from the design of the watch, the classic Luminox case with the protected crown balanced by an opposite outcropping, resembles the shape of a turtle. The 44 mm case is made of durable and lightweight signature CARBONOX and is water resistant up to 100 meters. This black-in-black dial is equipped with the proven Luminox Light Technology lighting system, providing at-a-glance visibility for up to 25 years.