Originally Posted by
walkerwek1958
Not much to add without taking the back off, it's definitely 1970s and I`m assuming it's hand-wound because it doesn`t say Automatic on the dial. The caseback will have a case reference number inside and the movement will have a serial number.
Getting extra links for the bracelet could be a real headache if they're required.
I would definitely advocate getting the watch serviced and waterproof again, it was waterproof originally (WR 30 metres in modern parlance) but it won`t be now, the crown seal will have either hardened or perished and it'll leak. Caseback seal likewise. Replacement crown may be needed unless an O ring seal can be fitted, genuine Omega crowns are getting harder to source so the sooner you address it the better chance of getting one. Same applies to the crystal if it's badly aged, but generic crystals will do the job just as well.
Its a nice-looking watch, black dials were less common and many have been refinished. The photo isn`t good enough to tell, but refinished dials on ladies watches are less common.