Citizen Exceed Quartz Wristwatch Model Number: 8020-H17842 Case Diameter: 32mm Glass Material: Sapphire Glass Original Belt and Buckle Lug Width: 17mm Buckle Width: 14mm Recently, I went to a watch shop to have the battery replaced in a different watch, and I asked when this watch's battery was last replaced. It was in May of this year. The watch shop keeps track of the battery replacement dates for me. Also, with normal use, I think it will last for another two years. Thank you.