Graziella G-Shock Gravitymaster Watch. GRB300-1A4

Case size (L× W× H): 59 × 54.7 × 15.7 mmWeight: 71 gCase and bezel material: Carbon / Bio-based resinBand: Bio-based resin bandConstruction: Shock ResistantWater resistance: 200-meter water resistanceTime adjustment: Bluetooth: Connects to a smartphone and automatically adjusts the timePower supply and battery life: Tough Solar (Solar powered)Smartphone Link feature: Mobile link (Wireless linking using Bluetooth®)Apps: CASIO WATCHESCase size (L× W× H): 59 × 54.7 × 15.7 mmWeight: 71 gCase and bezel material: Carbon / Bio-based resinBand: Bio-based resin band