How do you take the back off a watch?

SOURCE: watch battery replacement

I have a Timex Expedition Indigo with a metal case. Not sure of the exact model number but on the back there an M6 below Expedition. Anyway, I had the same problem of snapping the back back on. I found a "battery" website that had some suggestions that should be typical of any snap back case watch. http://www.online-batteries.co.uk/whichbattery.shtml specifically they said that when you try to press the back on it must be flat (not one edge down as I had been trying) Put the watch face down on a non scratch surface and press with both thumbs evenly. If that doesn't work a press will be needed. If you have a vice a couple of blocks of wood to distribute the load on the front and back may work, otherwise take it to a jeweler with the proper equipment. The thumb routine didn't work for me. I have a vice but figured many wouldn't so I tried something else first. I put the watch face down on a piece of wood. I found a small 2" long scrap of wood (3/4" x 1.5" approx) that spanned the back. I centered the back (aligned properly) placed the block of wood squarely and centered across the back and tapped the end of the block with a hammer. First try didn't work, second one did. I used a rubber mallet as the hammer but a regular hammer or other heavy object would work. The trick, I think, is to get everything lined up and square so the blow is centered and even. Also, I'd suggest cleaning the back and the groove in the case and be sure the rubber gasket is properly positioned. This will give you the best chance of retaining the waterproofing. And remember to check that the watch is running before you do this. Some need to be reset (usually with a very small screwdriver or pin) after replacing the battery. There should be a small hole with some printing next to it. You may need a magnifying glass to see/read it. Good Luck, Richard

SOURCE: changing the battery

You need to pry it open.

I used an X-acto knife

SOURCE: How do I release the

I just had this problem, and my 8 year old and I had to fiddle a bit to figure it out.

Just to confirm, you have removed the back cover and taken the watch guts out of the face and strap assembly and are looking at the battery which has a cover over it and maybe a sticker on the cover that says "unlatch to remove battery", with two >'s, one pointing to to each side?

On each side there are two small metal tabs, which surround a small moulded-in plastic piece with an opening in the middle.

The release is in that opening in the plastic piece. You need to fish around in that opening a little to catch the release and push it outward toward the edge of the watch (away from the battery). You need something very small to do this with, like a straight pin. If successful, the cover pops up on one side and then you do the same on the other side.

Good luck.

SOURCE: changing the date on a timex perpetual calendar watch

You can download the Perpetual Calendar instructions from Timex's website here.
If you don't like clicking on a link, here's the URL:
http://assets.timex.com/instructions/perpetualCal.pdf

Hope this helps. If this solution has been what you needed, please take a moment to rate it a fixya, and thanks for asking here!

SOURCE: Can't get the back plate of a Timex Indiglo WR30M watch back on

It is either a screw on case back or a "snap-on. I suspect that it is the latter since you don't mention that you used a tool to unscrew the case back. So getting the back on sometimes is very difficult. I have a special tool for that to apply even pressue and the necessary force and does not put pressure on the crystal. You have to be careful to not damage the crystal. If you don't get it done, then suggest you take it to a shop that has the right tool. If you have very strong thumbs you might get it done.