Casio G-Shock 2100 series

De Casio G-Shock 2100 series is a popular line of watches known for its sleek, octagonal design. These timepieces combine the essence of the original 1983 G-Shock with modern features such as a Carbon Core Guard structure, 200-meter water resistance, and, on select models, Bluetooth® and solar power (Tough Solar). The unique octagonal shape and slim profile of approximately 11.8 mm have earned this series the nickname “CasiOak.”
The 2100 series is available in several variants. The original model is the GA-2100 featuring a resin case. There are also more compact GMA-S2100 models. The GA-B2100 models offer additional functionality like Tough Solar and Smartphone Link (Bluetooth® connectivity). For a more luxurious look, the GM-2100 and GM-B2100 series feature stainless steel (metal-clad) or full-metal housings.