For more than half a century, Peugeot watches have held a reputation for luxury and quality. The company offers free battery replacement for as long as you own the watch--or you can change the battery yourself in a couple of minutes using a set of small screwdrivers, such as jeweler's screwdrivers, available at hardware and electronics stores.
Place the watch face-down on a clean towel to protect the crystal.
Gently unscrew the backplate from the watch with a small jeweler's screwdriver and set it aside.
Locate the battery compartment and remove the screw holding the cover in place, using the screwdriver. The battery is a small, round silvery button.
Make a note of the battery polarity before you remove it. Is the battery positive (+) side up or negative (-)?
Take the battery with you to a watch shop or electronics store to buy a replacement.
Insert the new battery in the compartment. Replace the battery cover and reverse the above steps to reattach the back cover of your Peugeot watch.
Write down the model number of the battery for your watch and store the information in a safe place in case you ever lose the battery.