Omega 354 service question

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I think the original seal is made of lead. Replacements (even the Omega ones) were rubber or nylon. It's a sign that the watch was likely never serviced from new. Most watchmakers would have routinely replaced the seal every time the watch was serviced.

Hope this helps,
gatorcpa
 
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if you still have the lead seal, re-fit it and do NOT throw that away. keep it with the watch . you can easily bend it back into shape. kind regards. achim
 
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if you still have the lead seal, re-fit it and do NOT throw that away. keep it with the watch . you can easily bend it back into shape. kind regards. achim

+1 have done it on several watches with success - an easy exercise...