G-Shock Mid-Size S-Series CasiOak GMAS2100-4A2 G-Shock Analogue and the band make for

and the band make for a watch that demonstrates the MUDMASTER commitment to the environment

and an Auto Light feature cause the face to illuminate whenever the watch is tilted towards the face for reading

You can use the app to enable or disable modes individually so only enabled modes appear

Date display at 3 o’clock

You’ll also love the streamlined profiles of the GSTB500D-1A and GSTB500D-1A1—perfect blends of strength and refinement

G-Shock Mid-Size S-Series CasiOak GMAS2100-4A2 G-Shock Analogue and the band make forThis series downsizes the GA 2100 to create a simple and slim design. The octagonal bezel, flat face, simple bar hour markers, and carbon core guard structure that are distinctive features of the GA 2100 are now available in a compact configuration.