There are different types of watches and some of them are LCD watches
, analog, quartz, mechanical, jewel and diving watches. LCD watches uses liquid crystal display to show the time and their numbers are usually gray or black on a lighter background. Quartz watches have a quartz crystal as a vibration system and they are most convenient in usage because there is no need to wind them up or worry that they will stop if you do not wear it for some days. Quartz crystal provides high accuracy of movement. A diving watch is water resistant through a depth of between fifty to one hundred meters and it is marked on the dial. Instead of the usual push/pull crown, a diving watch has a screw down crown and this creates a better water tight seal. Analog watches are watches that have hands, there may be a second hand or not. The second hand moves in continuous sweeping motion