Wanted to share this one, in case anyone else comes across it and fancies a punt:

https://www.ebay.co.uk/itm/223863303198Purchases made through these links may earn this site a commission from the eBay Partner Network

Listed as: WWII OMEGA MANUAL WIND GENT'S WRISTWATCH Cal. 19.4SC

Following the sellers instruction to, "See photos which form part of the description." you should be able to spot that it has an incorrect crown, is missing the movement retention/caseback spring, appears to have had the hands relumed, and contains the correct for this reference R17.8SC - not a 19.4SC.

Could be a bargain, or could be a frustrating quest to find parts.

Buyer beware...