Details Casio G-Shock Watch GA-B001G-1A offers an improved toughness-driven design with Smartphone Link functionality. The watch comes with an innovative construction, with two separate top and bottom bezel components that connect at the 9 and 3 o clock positions. Featuring a uniquely shaped LCD designed as never before on a G-SHOCK. Moreover, it can be synced with your smartphone via Bluetooth, and tap into the dedicated app to access the functions you need.