The Casio DW5600RL-1, DW6900RL-1, GA110RL-1S, and GA2100RL-1A watches have been launched in the US. These four new models celebrate the original G-Shock wearable, each offering slightly different features. For example, the GA110RL-1S is magnetic resistant, the GA2100RL-1A has a Carbon Core Guard structure and the two DW watches run for up to five years.