Thank you for viewing. This is a working CASIO Baby-G. Model number: BGA-250 Only the watch shown in the photos is for sale. The battery replacement time is unknown. The crystal is in a beautiful condition. There are scratches, stains, and signs of use on the case, back cover, and belt. Regarding the waterproof function, we cannot guarantee it due to the deterioration of the internal packing. I think it's difficult to understand, but please judge the condition based on the photos provided and only purchase if you are satisfied. We will ship it wrapped in air cushioning material, paper packing, etc. 〇〇〇Requests〇〇〇 This is a used item, so please refrain from purchasing if you are looking for a perfect product or if you are sensitive to details. Regarding the photos of the products you are viewing, we try our best to make them as close to the actual colors as possible, but the colors may appear different from the actual product depending on your environment (monitor, browser, etc.). Please understand this in advance. If you have any questions, please feel free to ask in the comments. Thank you for your consideration. Please take a look at my other listings from here. #UshinoYa #UshinoYaWatches #LadiesWatches #AnaDigi #DigiAna