Pro Trek by Casio Smart Outdoor Watch WSDF20BK G-Shock Gravity Master 35th Anniversary Edition GPW-2000TFB-1A biomass plastics are high-molecular

biomass plastics are high-molecular

up to 13 hours in GPS mode or up to 25 hours in UltraTrac™ battery saver mode

and an Auto Double LED Light that facilitates workouts in areas where lighting is dim

The heartbeat open aperture and glass exhibition case back

Powering this 44mm stainless-steel watch is an automatic movement

Pro Trek by Casio Smart Outdoor Watch WSDF20BK G-Shock Gravity Master 35th Anniversary Edition GPW-2000TFB-1A biomass plastics are high-molecularPro Trek by Casio Smart Outdoor Watch WSDF20BK OS: Android Wear 2. 0 (used with Smartphone running Android 4. 3+ or later. For models for which operation has been confirmed, refer to the Google check page. http: www. android. com wear check ) (iPhone*5, equipped with iOS 9. 0+ or later: iPhone 5 or later, with limited functionality.) 50 Meter Water Resistant Military Standard MIL STD 810G (United Stated Military Standard issued by the U. S. Department