Need to replace battery for Wenger "Swiss Military" watch, model 7299X/T. Do you know the battery type and can the rear cover be removed without special tools? Thanks

I am thinking you are talking about a Wenger watch, so question edited from 'Wegnar' and the word 'watch' added.
Question moved from Cellphones category to Wenger Swiss Military Watch..

Are you a Watchmaker or a Jeweler? Have a read. My guess is wrong battery, wrong voltage, dead battery or reverse polarity, or bad connection.

https://www.fixya.com/support/r27181038-changing_watch_batteries

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Here is the PDF manual for your watch.
http://www.wengerna.com/stuff/contentmgr/files/0/38ad6a646ac360be4ffb4ff67b526565/pdf/standard_watch_manual_2012.pdf

Are you sure the number 33009 is correct?
Most Wenger watches have 5-digit numbers starting with 7.

There is a Swiss Military Manual here:
https://www.wengerna.com/stuff/contentmgr/files/6/540159dc9885eeee1a65eec748ed4597/pdf/swiss_military_watch_manual_2012.pdf

the watch movement deters which battery the watch needs it is very important you do not put a battery in that doesn't suit the watch as it can short out the circuit however you can get the correct size in a gold seal quality which should not leak, also the older the watch, the more demanding the watch becomes on the battery as the movement components start to experience wear and tear

If your watch is a "quartz" type and you have had it for some time (a year +?), then it seems likely that the battery has expired.

If it is still within the warranty period (usually a year), then it would be unusual for the battery to have died. Contact your local service agent to discuss it if this is the case.

Batteries are best replaced by an authorised dealer, it will cost more but this will ensure that that any water resistance is retained. Replacing the battery yourself can be more difficult that it appears so you are advised to go to a service agent.


You can locate your nearest service center by going to http://www.wenger.ch/contact-us and filling in your details.

It may be a low battery. Have a new battery installed.

good day,
hope this link below will solve your problem.

watches

Click on my profile (escapement), then click on Tips and Tricks. There you will find link to all WENGER watch manuals. Rate me, please

That small gizmo is called CROWN or WINDING CROWN. It is not possible to obtain it online, so, you have to shop around for it. Find your nearest watchmakers shop and ask for replacement. You may need stem as well.
Rate, please.

Link

Hi,

Maybe you can try above link to contact Swiss Wenger for the repair of your watch. It's best to send your valuable watch to its Authorized Dealer for repair.

Thank you.