Citizen OF Collection Sport Watch pairs a steel case and bracelet with a black dial and reliable 10 ATM water resistance for everyday wear and active use. Key attributes: Multicolor | Black | Steel | Steel | Water resistance 10 ATM | Mineral crystal glass | Steel bracelet | Black dial | Steel case | Dimensions & fit: Case diameter: 39 mm | Composition & care: Case: Steel | Bracelet: Steel | Wipe clean with a soft cloth. Avoid contact with chemicals. Rinse with fresh water after exposure to salt or chlorine.