Casio G-Shock x GST-B1000 Series ft. Impact Guard Men Formal Hexagon 200m Water Resistant Watch GST-B1000BD-2A GSTB1000BD GSTB1000 GST-B1000 GST-B1000BD Discover the G-Shock GST-B1000 series, a sophisticated full-metal timepiece that redefines toughness with elegance. Featuring a remarkably slim 11.6mm profile, this watch combines premium stainless steel construction with G-Shock legendary durability. Powered by Tough Solar technology and enhanced with Bluetooth connectivity, it automatically maintains perfect time synchronization. Module / Movement 5748 (Tough Solar aka solar powered) Power Reserve / Accuracy Approximately 5 months when fully charged (+/-15 seconds per month without mobile link function) Crystal Mineral crystal Light LED light (super illuminator, afterglow) Case / Band Material Bio-based carbon / stainless steel case with stainless steel band (three-fold clasp with push-button release) Water Resistance 200m / 20 bar Case Size Thickness: 11.6 mm Diameter: 44.2 mm Length: 46.9 mm Lug width: Integrated Other Specifications Casio G-Shock x GST-B1000 Series ft. Impact Guard Shock resistant Screw-down crown Carbon core guard structure Chronograph up to 30 minutes in 1-second increment (elapsed time) 1-second countdown timer (up to 30 minutes) Daily alarm Full auto-calendar (to year 2099) Power saving (hands stop to save power when left in the dark) Low battery alert Day, date and 24-hour display Regular timekeeping (analog display) Smartphone Link / App Connectivity Features Mobile link (wireless linking via Bluetooth) Auto time adjustment Easy watch setting Time and place Phone finder