Automatic Vs. Quartz Movement?
A movement is the motor which runs the watch. Automatic movements are a type of mechanical movement. Quartz movements run off the power of a battery. Automatic movements are powered by the movement of ones wrist which wind a spring which powers the hands to keep accurate time. Quartz movements are more accurate then Automatics. They are accurate to within 30 seconds a year. Automatic movements are accurate to plus or minus 10 seconds a day. Because a quartz movement works off the power of a battery when the battery dies it must be replaced. A battery should last between 1-1/2 to 2 years (depending on the complications, including day, date, chronograph etc.) Croton recommends that you do not leave a dead battery inside a watch as it will corrode (eat away) the movement. Automatics do not require batteries. Most collectors seek only timepieces with mechanical movements to be part of their collections.
