The Casio G-Shock GA-B2100 Bluetooth Tough Solar men’s watch combines iconic octagonal styling with advanced smartphone connectivity and solar power technology. Built with a durable Carbon Core Guard structure using carbon and resin materials, the case measures 48.5 × 45.4 × 11.9 mm and weighs just 52g for lightweight yet shock-resistant performance. Featuring 200 metre water resistance, this model is suitable for swimming and water sports. Powered by Tough Solar technology, the watch charges from light for reliable, maintenance-free operation. With Bluetooth smartphone connectivity, it links to the CASIO WATCHES app for automatic time adjustment, easy watch settings, access to approximately 300 world time cities, Time & Place logging, reminders, and phone finder function. Finished with a durable resin band and the signature G-Shock octagonal design, this analogue-digital timepiece delivers modern functionality, everyday toughness, and smart convenience. Supplied in official Casio packaging with a 2 year manufacturer’s warranty.