Timex battery don't stay in baTTERY HOUSING - Timex Watches

SOURCE: How to replace battery for Timex expedition

Remove the four screws that hold the battery cover on the back of the watch. Remove the 3 very small screws that hold the battery in place. Remove the battery from the battery holder. The piece that the 3 small screws were removed from seperates from the 3 volt 2016 energizer battery. Replace the battery with a new one. Re-install the battery holder to the watch. There is a small tab on the lower left part of the battery holder that needs to be depressed to activate the watch. Depress it and look at the face of the watch to make sure it is activated. The watch will need to have the time, date etc reset but you should now be able to see that the battery is working. Replace the battery cover and reset the time and date as needed.