SM 600 Ploprof 166.077 project

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Hi all,

I have this watch since 2022 and put it aside due to the issues it has. Now inspired by some recent threads I dug it out and would like to ask you for your opinion and help:

The watch came with an EoA so it seems it was delivered to Venezuela in 1972. It has its typical milling marks with lots of little dings and scratches. The bezel is in pretty good shape, the red bottom works fine. The crown and stem is loose and comes off after unscrewing. The case has a 6 digit number on the side that seems to have been placed after production. The dial is blue and well patinated. The crystal has chipping from underneath, that means it is no longer flat on the side towards the dial and the circumference is incomplete: see pics. Someone probably tried to lift the crystal with a knife or something, not me. Hands lost lume and paint. The movement works ok including setting the day and time. So from the mechanical point it is easy reviveable.

What I am after is: getting it back to work and keep the most of the patina it has. Of course the movement should get an overhaul. The gaskets need to be replaced. Unfortunately also the crystal needs to be replaced as I fear the moisture will slip through the gap of the chipped crystal. With the hands I am undecided: leave them as is, or relume only the missing parts of it? But then they also lost some of the white paint... or find a better vintage set? What is the interpretation of the odd numbering of the case? The number does not match the serial inside...

Here in Germany the Omega dealers no longer get parts for repair or overhaul so they will send the watch to Bienne, which I will not do for the known reasons: please no Superluminova on this watch!

Maybe some of our members have access to the necessary parts or could point me to right direction to source them?

Here are the pics, happ to get your opinion, any help appreciated!

Best, caselock
 
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Well it looks like a survivor, so in this case I'd go for movement service, new crystal and a reluming of the hands, leaving the faded/missing paint as-is. I think the wear adds to the character of the watch.
 
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Well it looks like a survivor, so in this case I'd go for movement service, new crystal and a reluming of the hands, leaving the faded/missing paint as-is. I think the wear adds to the character of the watch.
Agree with this approach
 
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Hi Kasper,
would get new seals (the crown may be reusable with new set of seals), new crystal, bronze step ring, dial relumed, hands repainted and relumed too.
The stamping is interesting, I do not know what is the origin, but I`m almost 100% sure, that I`ve seen it in the past...may be the same watch? I think it may be some oil drilling company internal marking, as Venezuela is know for huge oil resources? (Donald knows too 馃榾
 
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The 6 digits are from a local reseller. I don't remember the name but i posted something about it last year. I saw these on flightmaster and so...
I may have a set of hands. Maybe some other parts. I can look in my part box!
 
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Thank you all for your evaluation where to go:
it is what I intended to do, do the basics and leave the whabi to it. This way I can just wear it without worries about the moisture sneaking in.
 
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Hi Kasper,
would get new seals (the crown may be reusable with new set of seals), new crystal, bronze step ring, dial relumed, hands repainted and relumed too.
The stamping is interesting, I do not know what is the origin, but I`m almost 100% sure, that I`ve seen it in the past...may be the same watch? I think it may be some oil drilling company internal marking, as Venezuela is know for huge oil resources? (Donald knows too 馃榾
Thank you, it would be a great help to source the parts.....
 
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The 6 digits are from a local reseller. I don't remember the name but i posted something about it last year. I saw these on flightmaster and so...
I may have a set of hands. Maybe some other parts. I can look in my part box!
If you could check your parts box? I will try to source the necessary parts....
 
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I have a ploprof project watch that I bought almost 10 years ago. While not quite same condition as yours, I still had some of same issues you described. The crown coming off might be a design issue, I have read about it, and experienced it twice while owning watch. I live in the USA and sent mine to Adam in Australia to get it back in shape. He painted my super luminous hands to match my dial. While I have a couple sets of tritium hands, after discussing, this seemed like best course of action. Last year the crown fell off, and since it was due for service I sent it to Tanner Morehouse, he is US based. I was apprehensive about sending it to Australia, and Tanner did an excellent job restoring my Mark II. In any case, there is a vintage Ploprof thread on OF that several have shared their experiences restoring a vintage Ploprof. If I can find link I will append this post.


 
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Some info on the glass of the PloProf 600, from the book Omega Seamaster Vintage by Alberto Isnardi. Which one would you say is for sale in the Etsy link? I am looking for a mineral one myself, not the sapphire.

Edit: the ref number of the sapphire glass seems incorrect.
Mineral: 063TN5180
Sapphire: 062SN5319

Disregard the bezel info on this page.
Edited:
 
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The crown disengagement (coming completely off) could be due to a couple of reasons, though yours looks like it is related to the stem assembly.

I sent mine to Bienne for full restoration. I've been told you can send it to them with directions to leave certain conditions unrestored. It is worth starting a conversation with them. If they will, you will have the best of all things (new parts were necessary and patina where you want it).
 
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I have a ploprof project watch that I bought almost 10 years ago. While not quite same condition as yours, I still had some of same issues you described. The crown coming off might be a design issue, I have read about it, and experienced it twice while owning watch. I live in the USA and sent mine to Adam in Australia to get it back in shape. He painted my super luminous hands to match my dial. While I have a couple sets of tritium hands, after discussing, this seemed like best course of action. Last year the crown fell off, and since it was due for service I sent it to Tanner Morehouse, he is US based. I was apprehensive about sending it to Australia, and Tanner did an excellent job restoring my Mark II. In any case, there is a vintage Ploprof thread on OF that several have shared their experiences restoring a vintage Ploprof. If I can find link I will append this post.


Great watch you have there!
Good to know some people do the service.... at the moment I am hesitant to send this watch around the world, but if all other options fail....?
 
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I would say minimum parts to change to get it running (not to mention the cosmetic improvments like hands and lume) are the crystal plus:
 
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Btw:
I wonder if the rubber segment is indeed open on one side: thus it does not add to watertightness...
 
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Btw:
I wonder if the rubber segment is indeed open on one side: thus it does not add to watertightness...
This seal is identical in size to the upper one, it`s just cut to accommodate the stem, once movement is being inserted in the monoblock case. It has nothing to do with WR, it is just a rubber ring, the dial/movement is being secured... it is quite fascinating, how the monoblock case is simple.... on the other hand, the crown/stem consist of 7 various parts, if I remember well...
 
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That will turn into a great watch, GL with the project.
 
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That's a cool toolwatch you have here.
My Venezuelian PloProf says hi!