This is a CASIO quartz wristwatch. It's a diver's watch-style model with a navy blue dial and a rotating bezel. The model number is "MTD-1010" according to the marking on the back cover. 【Movement/Operational Status】 Quartz (battery-powered) The battery has not been replaced due to mechanical failure. Therefore, this item is listed as junk. 【Appearance】 ・There are dirt, scratches, and scuffs from use. ・There are no significant deep scratches or cracked glass. ・There is rust overall on the back (back cover). ・Please check the photos for detailed condition. 【Accessories】 ・Watch only ・There are no accessories such as a box, warranty card, or extra links. 【Notes】 This item is a non-working, junk item. Please consider it on the premise of repair, parts replacement, or customization. Please purchase only if you understand that this is a junk item. Returns and refunds are not accepted.