Seiko M726-5A10 Scuba Master quartz wristwatch, in working condition. Currently, the battery has been replaced and it is working without any problems. Each button has been tested and is responsive. The backlight also illuminates as shown in the second photo. The case size is approximately 50mm wide. This is a used item, so there are scratches. Please consider the photos before purchasing. I am also listing other similar items. Please take a look if you are interested.