Watches are Timepieces that are worn on your wrist that primarily function as timekeepers. There are many different variety of watches with specific functionality or purpose. These are some of the most popular below. One thing that will not be discuss are smart watches like the Apple Watch or Garmin. These are mostly traditional watch with mechanical movements. Mechanical movements require interaction by the wearer such as winding the crown or physical movement to keep the watch running. The majority of the watches discussed here do not require a battery but they do require maintenance by a professional watch maker.