First year of the 861. Nice that it comes with the original case back. Most speedies with the monster back sent to Omega back in the 70’s had the back replaced with the “official watch... “ inscription. To me, that lowers the collector value but yours with the original case back is excellent.
The case could be cleaned up and the DNA grunge removed. Even resurfaced. Be aware, the pusher tubes and pushers have gaskets which are probably useless as is the original crown gasket. If the tubes and pushers retain their original plating then I would renew the gaskets without exchanging the parts. Requires some skill but is doable.
Omega does not replace parts with like parts all the time, just what is on hand in some cases. For example I have seen a flightmaster sent to OMEGA and it had all three crowns replaced with standard Omega stamped crowns. So with my flightmaster I removed the blue and black crowns and replaced the gaskets in them as well as the bicolored pushers then reinstalled them. Keeps the watch as is original.
For me, 5K USD plus, if you are not handy, another 1500 at Omega for a full service spa. Maybe talk about that to see about lowering the price. Don’t rely on the seller to tell you if the watch runs correctly unless they have an official document from a reputable watch maker stating such.
Geoff
