● Manufacturer: CASIO ● Series: G-SHOCK ● Model Number: G-B001RG-4JR ● Structure: Shock-resistant structure ● Water Resistance: 20-bar water resistance ● Mobile Link Function: Mobile Link function (Function linkage via Bluetooth communication with compatible mobile phones) ● Overview: G-SHOCK, the tough watch that continues to evolve in pursuit of unyielding strength since its release in 1983. This is the G-B001 series, equipped with a mobile link function and featuring a detachable bezel. The G-B001 is a model that evolved from the DW-001, which was born in 1994 with the concept of Capsule Tough. While retaining the original form and shock-resistant structure, it adopts a carbon core guard structure and achieves a unique design that further guards the resin bezel case with a bezel. It features a design inspired by 80s retro culture and game graphics. The capsule bezel is removable, allowing you to enjoy two designs with one watch. In addition, it links with your smartphone via a dedicated app to automatically correct the time, make various settings, and display information updates from the app on the watch. ● Manufacturer's Site: https://www.casio.com/jp/watches/gshock/product.G-B001RG-4/