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Most manufacturers recommend that you let a jeweler replace batteries, so that the waterproof seal is retained. Replacing batteries can be more tricky than it appears (usually re-fitting the back) and is not recommended for the untrained. Since this is a relative expensive watch, I recommend that you look big and pay to have it replaced professionally.Most manufacturers recommend that you let a jeweler replace batteries, so that the waterproof seal is retained. Replacing batteries can be more tricky than it appears (usually re-fitting the back) and is not recommended for the untrained. Since this is a relative expensive watch, I recommend that you look big and pay to have it replaced professionally.
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The battery type will be in the manual that came with the watch. No manual? Open the watch and see what it is. 95% of the time Walmart will have the one you need @$5 Or, just take it there. They will do it for you.
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The Casio Forester FT500WVB watch has an EL (Electroluminescent) backlight and requires one silver oxide button battery. The SR621W battery (also known as type 363) is recommended by the instruction manual for the watch. Note the suffix "W" means this battery is a high drain type which is suitable for powering a watch mechanism and the EL light as well for 2 to 3 years, depending on use of the light. "SW" suffix batteries are low drain and are intended only to power a watch mechanism, and not a light. Note also the "SR" prefix indicates the battery is silver oxide and not lithium. The SR type batteries do not use mercury and are therefore safer to dispose of when they are discharged. I have found the type SR626W (also known as type 377) battery is also suitable for the FT500WVB watch and it has more stored power and should therefore last longer.
Last, the Casio Forrester FT500WC looks exactly like the FT500WVB, but it is a different watch internally. The FT500WC has an LED light and requires two batteries- the SR920SW low drain silver oxide battery which powers the watch mechanism and the CR1616 lithium battery which powers the LED. The LED is brighter than an EL light and stays on longer than the EL light when activated. But the LED has a bright dot light source that some might find annoying.
The battery has its identification number on it, so if you remove the back of the watch you should be able to read the type without stopping the watch.
Or you could take it to a watch shop, who will have a stock of batteries. Removing and replacing the back of a watch sometimes takes some practice and I advise you to give the job to an expert, especially if it is a water resistant type.
Measure your original watch battery (diameter and height).
Compare with the cross reference list and find exactly what you want.
List is here: www.battery-info.co.uk/watch-battery-cross-reference.html - 19k - Cached - Similar pages
Most manufacturers recommend that you let a jeweler replace batteries, so that the waterproof seal is retained. Replacing batteries can be more tricky than it appears (usually re-fitting the back) and is not recommended for the untrained. Since this is a relative expensive watch, I recommend that you look big and pay to have it replaced professionally.
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