The Casio Oceanus OCW-G2000G-1A (often listed as OCW-G2000G-1AJF) is a premium, Japanese-made titanium watch known for its "3-Way Time Sync" technology. It combines high-end craftsmanship with advanced GPS, Radio, and Bluetooth connectivity for worldwide precision. Key Specifications & Features Timekeeping Engine: Uses the Connected Engine 3-Way, which synchronizes time via: GPS Satellite Signals: For location and time data anywhere on Earth. Multi-Band 6: Radio-controlled time calibration (Japan, North America, UK, Germany, China). Bluetooth (Mobile Link): Connects to the Oceanus Connected App for automatic time updates and easy world time settings. Materials & Build: Case & Band: Lightweight Titanium with a titanium carbide coating for enhanced durability. Bezel: Features a DLC (Diamond-Like Carbon) hardened finish and a sapphire glass inlay for a deep, scratch-resistant gloss. Glass: Dual-curved sapphire crystal with a 99% clarity anti-reflective coating on both sides. Power & Durability: Tough Solar: High-efficiency solar charging that operates for ~7 months on a full charge without further light exposure. Water Resistance: 100 meters (10 ATM), suitable for daily use and swimming. Size & Weight: Measures approximately mm and weighs about 103g.