Register is a term used to describe a feature on a watch that allows the owner to keep track of different events, such as the number of days since a certain event. Typically, a register will be a small dial with a few hands that can be set to track the amount of time that has passed. This can be used to keep track of birthdays, anniversaries, or any other important date. Some watches may also have multiple registers, allowing for tracking of multiple events at the same time.
