Citizen Tsuyosa Shore pairs a 40 mm stainless-steel case with a marine-blue dial and a unidirectional timing bezel for everyday active wear. The design combines a robust automatic movement with sapphire crystal for reliable, readable performance. Key attributes: Marine blue | Steel | Stainless steel | Water resistant to 10 bar (100 m) | Automatic movement (Cal. 8210) | Scratch-resistant sapphire crystal | Luminous hands and indices | One-way rotating bezel | Integrated stainless-steel bracelet | Hidden butterfly clasp | Transparent case back | Round case | Blue dial | Integrated bracelet design | Dimensions & fit: Case diameter: 40.0 mm | Case thickness: 12.5 mm | Band width: 22 mm | Composition & care: Stainless steel (case) | Sapphire crystal (glass) | Stainless steel (bracelet) | Wipe clean with a soft cloth; avoid chemicals. Ensure crown is secured before contact with water.