Brand: Casio Model: G-SHOCK G-STEEL Reference: GST-B400 Gender: Men Period: Modern Movement: Tough Solar quartz with Bluetooth connectivity Case: Stainless steel and resin case Bracelet: Black resin strap Dial: Black analog-digital display Accessories: Original box Description: The Casio G-SHOCK GST-B400 is part of the advanced G-STEEL series, combining a refined stainless steel bezel with the shock-resistant durability that defines the G-SHOCK collection. This model features a slim-profile structure compared to earlier G-STEEL generations, offering improved comfort while maintaining strong impact resistance. The black dial with analog-digital display provides excellent legibility together with modern functionality. Equipped with Tough Solar charging and Bluetooth smartphone connectivity, the watch allows automatic time correction, world time synchronization, and enhanced usability through the dedicated mobile application. Designed for everyday performance and outdoor reliability, the watch offers 20 bar water resistance and a robust multi-layer guard structure. The watch comes with its original box. Modern watches may show minor handling marks from storage or inspection. Water resistance is designed for everyday use according to manufacturer specifications. Solar charging performance depends on usage environment and cannot be guaranteed long term. • Case width: 49 mm • Wrist size: approximately 12–22 cm Condition: Seller's internal condition grade: AA AA: Very clean condition with minimal signs of use The watch is running at the time of inspection. Bluetooth connectivity and solar charging functions respond normally. Long-term accuracy has not been tested. Calendar and additional functions operate normally if present. No maintenance history is provided unless stated. Authentic item sourced from Japanese professional reuse market. Returns accepted only if the item differs from description. Shipping & Customs: Shipped from Japan by FedEx or EMS with full tracking and insurance. Dispatched within 1 business day after payment is received. Import duties, taxes, and customs clearance procedures are the responsibility of the buyer according to the regulations of the destination country. The recipient may be required to contact the shipping carrier to complete customs procedures. The item will be carefully packed with protective materials to ensure safe international delivery. Internal Condition Rank Guide: SA = Like new AA = Very clean, minimal signs of use A = Good condition with light signs of use AB = Noticeable signs of use B = Heavily used Seller memo: Internal control number AR-0324A014