I need assistance with identifying my fathers Omega

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I have taken possession of my fathers Omega that he has had for as long as I can remember. We had to move him to 24 hour nursing due to his dementia and didn't want to leave things of value that could be taken. I am interested in learning more about his watch, and this is my first step. I have already looked through a bunch of threads and have not been able to find pictures that look exactly like it. Thank you in advance for your assistance.
 
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It would help a lot if you could have someone remove the case back, and upload a picture of the stampings inside the case back (don’t worry about hand scribed marks left by repair people). And also a picture of the mechanism.
 
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I thought that might be the case. (No pun intended) I was thinking I might be able to do it myself, as I had looked at adjustable spanner wrenches online. Is this something I can do, or should leave to a professional. I am a field engineer in the AV industry and do electronics repair but this is something new.
 
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Is this something I can do, or should leave to a professional....but this is something new.

I would take it to a watchmaker and have them do it. I cannot help you identify your father's watch, but it is a lovely piece of family history that does not need any cosmetic assistance from large scratch across the case back 😉.
 
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If you have a rubber ball or a KONG dog toy you can get it off with that since it screws off.
 
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Remember that there is debris on and near the threads on the back that may fall into the movement. Watchmaker is recommended.

That said, if you still want to attempt, start with a rubber ball. I get mine at Dollar Tree. It may or may not work depending how tight it's on there or with possible corrosion. Then progress to a 3 prong case opener. DO NOT USE THE CHEAPIE 2 PRONG TYPE.

 
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I love an excuse to buy a new tool 😀. Thanks for the advice to not buy the two prong tool as there are many on amazon. One thing I did notice in the comments on amazon about the case tools is not to get ones with round pins, that square or rectangular pins will grip the slots more securely.
 
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I have taken possession of my fathers Omega that he has had for as long as I can remember. We had to move him to 24 hour nursing due to his dementia and didn't want to leave things of value that could be taken. I am interested in learning more about his watch, and this is my first step. I have already looked through a bunch of threads and have not been able to find pictures that look exactly like it. Thank you in advance for your assistance.
A suggestion, if your father is used to wearing a watch (and enjoys having one handy) is that you find him a nice, inexpensive quartz watch he can wear in its place. He's almost certainly going to be struggling with the changes to his routine- having a watch he can depend on to tell the time (while not being valuable enough for someone else to want to steal) would be a great thing.

Having said that, its likely (you won't know for sure until you see inside it) that its not a particularly expensive model of Omega and that any sensible thief wouldn't bother taking it in the first place. Unfortunately, thieves are frequently not sensible.
 
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I love an excuse to buy a new tool 😀. Thanks for the advice to not buy the two prong tool as there are many on amazon. One thing I did notice in the comments on amazon about the case tools is not to get ones with round pins, that square or rectangular pins will grip the slots more securely.

I may be the exception, but I prefer the two arm tool over the triple.
It's easier to maintain the two arms parallel to the caseback, than it is with three. Even with a slight deviation up/dn with the two arm, the pins remain, with the three pin, up/dn will cause either the front pin to lift or the rear ones to do the same.

If you're going to do it yourself, use some plywood to make a case holder and sit the watch face down (protected with tape or similar) with the lugs held by wood blocks.
You can then use the surface of the plywood base to rest your hand on to maintain a level grip.

Make sure you use a soft dry toothbrush and a toothpick to clean around the case edge so you don't get crud in the movement.
 
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Just as an example, here's one I made earlier 😉.



Here you can see how you can use the surface to keep the tool level, you can even press down on the fork end to give good pressure.

 
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Blue Gloves are an absolute must for opening your Watch. Classy ! Kind regards. Achim
 
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Blue Gloves are an absolute must for opening your Watch. Classy ! Kind regards. Achim

😁

I was getting some parts out of the cleaner and still had them on so couldn't be bothered taking them off.

And after all, it's extra anti COVID-19 suppression measures that count these days.......isn't it?
 
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😁

I was getting some parts out of the cleaner and still had them on so couldn't be bothered taking them off.

And after all, it's extra anti COVID-19 suppression measures that count these days.......isn't it?
Yup, wouldn’t want your nice watches catching that nasty COVID-19 bug 😉

Not sure if it is strictly necessary or even advisable, but I was told to put a piece of tape (masking or similar) to cover the case back, in case the opener slipped, this preventing or at least reducing scratches .
 
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...............................Not sure if it is strictly necessary or even advisable, but I was told to put a piece of tape (masking or similar) to cover the case back, in case the opener slipped, this preventing or at least reducing scratches .

Using the correct tools in the correct manner? Then there is no need for protection against the fist of ham.

The tooth of a caseback tool skidding out of a detent isn't going to be stopped with a layer of tape.

I only use the tape cover for the back of lugs if the owner is really (really) anal about scratches where they can't be seen. But as I set springbars with a soft wood stick, the scratches don't even eventuate.