I am trying to find a large o-ring ( 40 mm) to fit the caseback of a PAM Radiomir. I tried Jules Borel but the largest I can find is about 38mm. Does anyone have a source for this? Thanks.
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Large O-Ring Source?
- Thread starter marcel
- Start date
They are also sometimes offered at the bay. Maybe thats a good place to start, too.
Great gesture, Offshore!
Great gesture, Offshore!
It's completely unrelated to watches, but McMaster Carr has an enormous selection of o-rings in all shapes and sizes... you just may have to buy a pack of 100! 
but then, a pack of 100 is $5.69.
mcmaster.com
Just a thought...
but then, a pack of 100 is $5.69.mcmaster.com
Just a thought...
Thanks for the suggestions all. I went to the bay and bought a bag of 300 different o-rings for $10, hopefully something will work. Let me know if y'all need any caseback o-rings, I think I will be the King of the O-Ring after this. :wink:
I know you already have your answer, but just so you know, you can vulcanize neoprene o-rings (stick the ends together) using super-glue. Just purchase the cross-sectional diameter you need, cut it to length and glue the ends together. Believe it or not, it's done that way on some military projects.