PRJ-B001WM-1JR Release Date: November 8, 2024 Case Size (H x W x D): 50.3 × 46 × 13.6 mm Weight: 47 g Case/Bezel Material: Resin / Resin (Biomass Plastic) Band: Flame-retardant cloth band (using biomass material) Water Resistance: 10-bar water resistance Environmental Resistance: Low-temperature resistance (-10°C) Time Adjustment: Bluetooth: Automatic time correction by connecting to a smartphone Power Supply/Battery Life: Tough Solar (solar charging system) I have never used this after purchasing it. There were scratches on the outer box from when it arrived. I removed the paper tag (which can be reattached at any time) for the photos. Thank you.