If you have a Swatch wristwatch that needs a battery replacement, you might be wondering what kind of battery to use. There are different types of batteries for different watches, and using the wrong one could affect the performance or lifespan of your watch. One way to find out the correct battery for your watch is to look at the old battery that you removed from the watch. It should have a number on it, such as SR 936 SW or SR 927 SW. This number indicates the size and type of the battery. The first two digits of the number represent the diameter of the battery in millimetres. For example, SR 9xx batteries have a diameter of 9.5 mm. The last two digits represent the height of the battery in tenths of a millimetre. For example, SR xx36 batteries have a height of 3.6 mm. The letter S stands for silver oxide, which is the material used in most watch batteries. The letter R stands for round shape. The letter W stands for high drain, which means the battery can handle more p...
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