I can't remove the battery from my Timex Ironman watch

Try if you can rotate that metal cover

It's just stuck and will need a gentle pry from the tip of a small knife blade to pop it up.

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Hi,

Battery Replacement:
1. Unscrew and remove four screws on back of watch. (Depending on your model, you may have to take the watch band off. Also, you could simply remove 3 screws completely and one just unscrew halfway so that you can pivot off the watch backing plate... that's what I do.)
2. Remove Watch Backing Plate (or pivot off if you just unscrewed three and loosened one).
3. Unscrew the three (or four, depending on your model) screws holding the Battery Brace. (Or completely unscrew two while only loosening the brace enough to pivot off. Don't worry about mixing these screws with the Backing Plate ones, as these are noticeably smaller).
4. Peal the Battery off the undercarriage of the Battery Brace.
Once you remove (or pivot off) the Battery Brace, you'll see the battery stuck with a sticky tape-like material to it; merely "peal" off the battery.
5. Get New Battery. The dead battery you took out of the watch has numbers on the back. Bring it with you to a drug store (or where ever you go for batteries) and get a battery with the same numbers. A drug store will do, as most watch batteries are fairly standard.
6. Replace Battery. Replace battery reverse of the way you took the dead one out.
7. Put it all Back Together.
BONUS:
As soon as you replace the battery (stick it on the Battery Brace) and screw the Battery Brace into its original seat, either quickly flip the watch over and look at the read-out OR hit the reset switch (the reset switch is a metal contact "finger" that can be pressed to touch another piece of metal).
On the read-out you will see the watch go through a Power On routine that it does the very first time it is powered on. Check it out. It's pretty cool.

Note - Sometimes on these watches, replacing Batteries are big pain.So, make sure you do not screw anything while changing Battery.

Hope i helped you.

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