How do I change the battery in my cardio. 30 WR-5 watch

To reset your Timex 637 T5G951 WR 30 heart monitor, you can follow these steps:

1. Press and hold the "Mode" button on the front of the watch for three seconds until the watch display shows "Settings."
2. Press the "Next" button on the side of the watch to scroll through the settings menu until you reach "Reset."
3. Press the "Mode" button to select "Reset." The display will show "Yes" and "No."
4. Use the "Next" button to scroll to "Yes," and then press the "Mode" button to confirm.
5. The watch will reset and return to the time display.

Note: Resetting your Timex 637 T5G951 WR 30 heart monitor will erase all your saved data and settings, so you will need to set it up again after the reset. If you need to keep your data, consider transferring it to another device before resetting the watch.

Previously suggested solutions on FIXYA - also shown in the list of Related Questions below.

http://www.fixya.com/support/t3580457-get_back_plate_timex_indiglo_wr30m_watch

these are not the model number , CR2016 is the lithium battery number and the WR30 is water resistance 30 meters.

you will need to send the watch off to Timex [email protected]

WR means 'water resistant' to '30 meters'....http://www.timex.com/browse/men/watches/replacement-watch-straps/

don't buy Timex I have a few in my collection and they all do the same.

You can get instructions from the Timex web site "timex.com".

At the bottom of the screen click on "manuals/downloads", then on "product
manual download"

Enter your watch type in the search box and click on "search"

remove back cover plate- inside you will need a jewlers screw driver- install new batery in reverse. install screw- and snap cover back in place.Make sure battery is new.