Easy to see even in the dark with a light. The time display can be set to either 12-hour or 24-hour format. There are three different alarm sounds. The day of the week, seconds, and date are displayed within circles. In World Time mode, you can see the time in 48 cities (29 time zones). Summer time can also be set. The stopwatch function allows you to measure split times. The timer function also has a repeat function. Baby-G analog wristwatch Serial number: 5001 Model number: MSG-300C, White The watch has been stored for many years, so the battery has not been replaced, and the operation has not been confirmed. The watch is stopped. If you are able to maintain it yourself, we would appreciate it if you would consider purchasing it.