How To Setting Time Casio G-shock GMA-S2100 “CasiOak" | casio 5611. 

Wow, thanks!

I'm so glad!

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This watch has a rechargeable cell which is charged by exposing the dial to light, such as direct sunlight or fluorescent lamps. After taking off the watch, put it in a location where the dial is exposed to bright light, such as by a window. The watch can be charged effectively when the dial is exposed to sunlight as shown in the figure. For optimal performance, be sure to: • Charge the watch by exposing it to direct sunlight for five to six hours at least once a month. • Avoid leaving the watch in a dark place for long periods of time. • If the watch is obscured from light by long sleeves frequently, supplemental charging may be needed to ensure continual operation. • Do not charge the watch at high temperature (about 60°C/140°F or higher).

Got it in the last part, nice tutorial

Most welcome.

Men watch.

these GMA-S designs are a smaller version of the GA. it's marketed to ladies, but men can wear it too (Unisex)