Your crown is consistent with an original from when it was first introduced according to an image on the Omega site.
https://www.omegawatches.com/en-us/watch-omega-other-omega-ot-2390
Mine is luminous, so there are some differences, but the shape of the Omega symbol and "OMEGA" are consistent with mine, so not a bad redial by any means.
If you look under the balance, do you have a 30 or 30T1 or 30T2?
Good find with that super-rare Tessuflex bracelet in 11/16th. Wish I had one long enough.
Tom
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