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Crystal and Crown for Seamaster Cosmic 2000 166.0218

leafy
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Hi OF,

I'm trying to find the correct part number for the crystal of a Seamaster Cosmic 2000 - 166.0218

Here's a picture of the same model watch from the interwebs.

Can someone help me out with the part number? Also, I'm assuming I should be looking for the crystal with the yellow gilt ring, right, or does it matter?

EDIT: Found the crystal. All I need now is the crown. However, it seems there are 2 different crowns for this case:

4.5MM X 2.75MM TUBE 2mm
4.0MM X 2.85MM TUBE 2mm

Can someone confirm the correct crown size for the watch pictured below?

Thanks for any help!


View attachment 1034266
Edited:
 
JimInOz
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Crystal with a yellow tension ring is PX5249.
Silver one is PZ5249.
 
leafy
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JimInOz JimInOz
Crystal with a yellow tension ring is PX5249.
Silver one is PZ5249.

Awesome!

Just curious…is there a reason to choose the yellow ring over the silver?

Thanks again!
Edited:
 
JimInOz
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The yellow ring has much greater holding power and also imbues the movement with incredible anti-magnetic properties.

😉

Gold or gold plated watch, or a dial with gold hands/indexes = yellow (gold) ring.
Stainless steel with silver hands/indexes = silver ring.
 
leafy
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JimInOz JimInOz
The yellow ring has much greater holding power and also imbues the movement with incredible anti-magnetic properties.

😉

Gold or gold plated watch, or a dial with gold hands/indexes = yellow (gold) ring.
Stainless steel with silver hands/indexes = silver ring.

Hahaha! In that case, I’ll take two of each!

So, silver tension ring for my version then.

Thanks again!
 
leafy
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I’ve edited the original post to request additional help on identifying the proper crown.

Thanks all!
 
JimInOz
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Measure the tube clearances on your case.
 
Archer
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leafy leafy
I’ve edited the original post to request additional help on identifying the proper crown.

Thanks all!

Okay well in response to your PM the other day I did give you the part numbers - posting them here for all to see, as well as the stem parts you asked me about:

Crown - 069ST42527

Stem - female portion that goes in the crown - 081ST9992

Stem - male portion for the movement - 72210101159
 
leafy
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Archer Archer
Okay well in response to your PM the other day I did give you the part numbers - posting them here for all to see, as well as the stem parts you asked me about:

Crown - 069ST42527

Stem - female portion that goes in the crown - 081ST9992

Stem - male portion for the movement - 72210101159

Thanks Al! This is great.

Just saw the PM again. My mistake.

Thanks everyone. Much appreciated!
 
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