Casio G-Shock G-Steel Men's Watch GBM-2100-1A2 Shock Resistant Bluetooth Tough Solar Seiko Solar The GST-B400 is made possible

The GST-B400 is made possible by even further miniaturization of its parts and thinning of its modules without sacrificing any Bluetooth or solar function

the schedule timer syncs with your smartphone’s calendar app to transmit schedule items to the phone and display start and end times on the watch

Measuring unit: 1 m (5 ft

the SOSPENSIONE ECB-2000 is the first EDIFICE with a carbon fiber-reinforced resin case

Anti-reverse bezel

Casio G-Shock G-Steel Men's Watch GBM-2100-1A2 Shock Resistant Bluetooth Tough Solar Seiko Solar The GST-B400 is made possibleFeatures G STEEL 2100 Series Metal clad daring meets sophisticated gleam in a GBM 2100 that delivers Smartphone Link via Bluetooth and Tough Solar charging system, all in a meticulously finished metal design with iconic octagonal bezel. Choose from a basic black dial or metallic vapor deposition in blue or green, each complemented by a band made of environmentally responsible bio based resin. Welcome to a whole new level of metal clad 2100