Armitron 75/3889 remove back - Armitron Watches

You might try Esslingers first and simply see if they have a watch back.

Or put Armitron case back in the Search box of eBay

Good luck

press the mode and set from 24 back to 12 save setting by pressing mode again

check for a small bit of plastic under the winder knob
if it has it remove it and push the knob back in
new watches have this in place so that battery will not go flat in the show room or in stock

Google ( armitron watch manual ) , there are a few different models on a youtube video, also a link to download manuals a little further down the page.

If the watch #/size is not printed on the back of the watch, you will actually have to remove the battery to figure out what size you need. Best regards.

I found a download for instructions but I will have to look more for band instructions. I will try to get back to you,

http://www.retrevo.com/search/v2/jsp/mytrevo/myTrevo.jsp?page=man

From http://www.armitron.com/WatchInstructions.html

If you cannot locate your type of watch listed here, please refer to the back of the watch
case for our Armitron style number and contact us at 718.784.0700 for further help

If your Armitron has a set of 6 inset notches around the back, as does my Y121E 20/1791F Armitron Diamond, that's a screw-back case that does _not_ pop off or pry off. You'll need a case opener tool, which is basically a small tool with adjustable-gap jaws that fit into two notches on opposite sides of the case and let you unscrew it. Wal-Mart sells this tool for about five bucks, and it'll pay for itself soon enough, as many watches have screw backs, and this will fit most anything you find. Head for their jewelry department and you should find the tool hanging up with the replacement watchbands and batteries.

The case is probably screwed down fairly tight against its O-ring seal, so make sure the tool is seated properly in the case notches, and turn it slowly and firmly counterclockwise to work it loose.

If your watch is like mine, it'll take a #377 cell, but wait until you've opened yours up to be sure.