Questions about Memomatic Racing 166.071

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I bought a Memomatic ref. 166.071 with pilot case, and I ask your help about some issues.

It is wabi sabi wore, and I think it is never polished. I have any doubts about left side that appears not perfect perpendicular, and it is lightly concave. It is ok?
On the crown side you can see the Portugal “Salazar Mark”.
Do you think it is never polished?

Another question is about the glass: does anybody know the original glass code to order it? Is the original one domed or flat?

Thank you for your help.
 
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Can anybody help me about crystal?
Is the original one domed or flat?
 
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Can anybody help me about crystal?
Is the original one domed or flat?
If you mean flat as in glass flat, it's not, it should have a hesalite (plastic) crystal
 
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here are some pics of a factory service case that I sold about 4 years ago.....not the same angles that you have
 
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Crystal - 063PZ5181
 
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here are some pics of a factory service case that I sold about 4 years ago.....not the same angles that you have
Thank you for your reply.
For Factory service do you mean refinished by Omega? So not untouched from seventies.
 
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Thank you for your reply.
For Factory service do you mean refinished by Omega? So not untouched from seventies.
Actually a replacement case from the factory….was sealed in Omega packaging before putting a 980 movement from the cushion case version inside.