GA-2100RL-1A GA-110GB-1ADR 300 surf spots around the

300 surf spots around the world on the dedicated smartphone app and send tide patterns

Go metal-clad in cool

The front button makes it simple to access the high-brightness LED light so you can easily read the dial

and check activity history

Welcome to Tone-on-Tone G-SHOCK — watches devoted to the monochrome aesthetic

GA-2100RL-1A GA-110GB-1ADR 300 surf spots around theA simple and streamlined watch with octagonal bezel. The original color scheme is faithfully reproduced with touches of G SHOCK red, representing the passion to take on challenges; blue, symbolizing excellent water resistance; and yellow, signifying outstanding shock resistance.