Luminox Bear Grylls Survival Master series uses #tide up cycled plastic from water bottles reclaimed from the ocean for its 45mm case, bezel and straps creating a new chronograph, available in an outdoor green dial and strap color way. The case back of the watch includes Luminox, Bear Grylls and #tide logos and water resistant to 200 meters. Origin: Swiss Made Always Visible: Constant glow for up to 25 years Size of case (diameter): 45 mm Function: Chronograph Date Water resistance (meters, feet, ATM): 200 / 660 / 20 Movement: Swiss Quartz Case material: 100% Recycled ocean-bound plastic material Bezel: Uni-directional rotating Case back: 316L Stainless steel screw in Crystal glass material: Sapphire crystal, anti-reflective coating Crown: Screw in, double security gasket, crown protected Strap / bracelet: 100% Recycled ocean-bound plastic material Lug width: 24 mm Case height: 14 mm Weight: 85 g