1. Introduction We are pleased to offer this imposing and feature-rich CASIO G-SHOCK G-STEEL GST-B100 (Module No. 5513). This watch is part of the G-STEEL line, combining the legendary G-SHOCK durability and Shock Resist structure with a premium metal design featuring a striking gold-tone bezel. It is powered by Tough Solar technology and offers 20 BAR water resistance and Bluetooth connectivity. Estimated Production Year: Post 2017 (Based on caseback information). 2. Historical & Collector Value The G-STEEL B100 series represents the fusion of CASIO's core ruggedness with modern technology, including solar charging and smartphone linking for accurate timekeeping and function control. This gold-tone execution is highly sought after for its bold appearance and its functionality as a high-tech tool watch. 3. Specifications Brand: CASIO G-SHOCK Model: G-STEEL GST-B100 Reference Number: GST-B100 (Module 5513) Movement: Tough Solar Quartz Case Material: Stainless Steel / Resin (Gold IP Bezel) Band Material: Resin / Urethane Strap (Black) Case Size: Approx. 53 mm (Excluding buttons - Men's Size) Accessories: Watch only (No original box or papers - Example) Features: Shock Resistance, 20 BAR Water Resistance, Tough Solar, Bluetooth Connectivity ("CONNECT"), Dual Time Display. 4. Condition (based on image analysis) The overall impression of this timepiece is Very Good. Dial & Crystal: The dial is complex and highly legible. The crystal appears clear. Case & Bezel: The gold-tone IP bezel and case components show minor surface wear, consistent with light use. The structure is sound. Caseback: The stainless steel caseback is clean and clearly marked with the model number and features. Strap: The black resin strap is in good, functional condition. 5. Service History We prioritize reliability. This solar quartz watch has been inspected and confirmed to be fully functional, with the solar charging system working. It is currently running and ready for immediate enjoyment. 6. Shipping & Customs Please be aware that international shipping fees and all associated customs duties and taxes are the sole responsibility of the winning bidder. We ensure secure, insured international shipping, but the buyer must manage and pay for all local import fees and processes upon arrival.