The movement is mostly fine with one major caveat. The balance itself needs to be replaced. Positional timekeeping will never be in spec without doing so. The hairspring has lost its tension and the balance pivots are worn. This would likely be down to long periods without maintenance. At the moment there are no balances on eBay and they have been NLA from Omega for quite some time. As much as I’d like to strip it down completely and clean it, I know it will be a losing battle to get it to keep time afterwards. When the balance was still available from Omega they were $680. It’s anyones guess what one might cost on the secondary market, they are rare though. The only thing to do is to keep looking in the hope that one turns up.
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