But an OB will probably not do it, because it is modifying the watch to something Omega hasn't (and doesn't sell). Any opening of the watch by anyone (even a watchmaker) not connected to an authorized Omega Service Center voids the warranty. Changing the bracelet clasp is NOT the same as uncasing the movement from the watch, removing the dial, replacing a hand, then recasing a movement. Lots can go wrong there, which is why it wouldn't be covered.
Surprisingly, most manufacturers void the warranty if someone other than an authorized center has opened the item and messed with the internals.
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