This is a multi-functional wristwatch released for shareholders of Ricoh Co., Ltd. It is the Ricoh Apex, model number 660. Purchased several years ago for 87,000 yen. It has many functions, including an alarm, timer, stopwatch, vibration, and beeps, as well as LED illumination. Please refer to the instruction manual in the last photo for details. The only visible dirt and scratches are on the artificial leather band, not the watch itself. It was damaged by sweat after one summer of use. Replacing it with a new one would be better anyway. It operates stably with a charge every 20 days when placed on the charging stand.