There are two main types of movements which you will find in pocket watches: Quartz and Mechanical movements.
Quartz movements are battery powered movements which usually have a battery that lasts for around 2 years from date of being manufactured. These are more typically used if the owner wants to use the pocket watch for time keeping itself and used on a more regular basis. You cannot typically view the workings in a quartz powered pocket watch, with the dials usually being plain, although you can still have Quartz powered pocket watches in all the main five different types of pocket watches which include Open Face, Half Hunter, full Hunter, Double hunter and Double half hunter.
Mechanical movements, which are used in pocket watches that are made today, give the pocket watch a certain antique look and feel to it. That makes pocket watches with mechanical movement the perfect gift for that special someone on that special occasion. These type of watches are great for displaying on the mantel piece within a nice display box or hung from a pocket watch stand. You can also have this type of pocket watch in all five different types of pocket watch. They can also be known as a windup watch, with the wind up usually located on the stem of the watch; which will need winding until it feels tight. Caution is needed as over-winding of the watch can lead to the spring inside the mechanism breaking which will need to be replaced. Mechanical watches can be seen at their best when in pocket watches with a skeleton case; where the internal workings are view-able from the outside.