Celebrate Casio's 50-year watchmaking journey with this commemorative G-SHOCK timepiece. It showcases Casio's passion for innovation and new value. The GMC-B2100ZE captures the essence of creating something from scratch, with the thrill of going from '0' to '1'. This full-metal chronograph features a striking black and gold color scheme, symbolizing the start of innovation. A single gold link on the black ion-plated band, laser engraved with '50th ANNIVERSARY', catches the eye like a light in the dark. The dial's outer perimeter is printed with 0's and 1's, highlighting Casio's dedication to craftsmanship. The screw-down crown, in the same octagonal shape as the bezel, makes the watch more compact without compromising shock resistance. High-density mounting keeps the chronograph module slim, offering advanced functions in a comfortable, compact design. Case Size: 51.3 x 46.3 x 12.4 mm. Case and bezel material: Stainless steel. Band: Stainless steel band. Water resistance: 200-meter water resistance. Power supply: Tough Solar (Solar powered). Style#: GMCB2100ZE1A.

Using this G-Shock watch is easy. Just put it on your wrist like any other watch. The watch is solar-powered, so make sure it gets some sunlight regularly to keep it running. For 200-meter water resistance, it can handle swimming and snorkeling, but avoid deep-sea diving. When cleaning, use a soft, damp cloth to wipe the case, bezel, and band. Don't use harsh chemicals as they may damage the watch. If you're not using it for a long time, store it in a dry place. Keep it away from strong magnetic fields as they can affect the watch's accuracy.