Well, in the end (hah!) the strap pin bit came out with the aid of a sewing needle - hurray! A minor triumph for an old man... And here's the Oris with new Condor strap:
It's a lovely dial, and the new strap sets it off nicely on the wrist. Good movement as well. Not bad for £30, including postage. If there's a watch I particularly want - and I can afford it - I'll go for it without worrying about money. But it's always a bonus when you get a nice watch for a reasonable price.
Not quite railroad grade, but pretty good, with a beautiful dial and a gorgeous movement. Runs a few seconds a day fast, which isn't bad for its age - 99!
Hi
I am no pro but, as far as I know, this movement should have a thorough cleaning before you try to regulate - it may not need much regulation after cleaning. old oil + gum can add too much drag and reduce the amount of torque driven to the balance wheel.
My understanding is: when the balance wheel does to rotate at full amplitude - the watch goes very fast.
good luck