Still off work due to a knackered left knee (meniscus)Bad part!
Receiving an A7750 from concepeta to replace one with winding problems in my 3717,
Swapping the movement out with out problems so now i had an auto wind 3717 again.
Looking at the two movements and seeing the problem, Then thinking i have my old black bird movement that Michael Allen messed up, Hmmmm maybe i can get the Ratchet driving wheel out of that and fix this one. Yep that works so after reassembly i have a spare 7750!
Hmmm what about that black bird movement, surly i can fix that as well, in a hand wind mode any way, so armed with the tech drawings for a 7750 that was reassembled to a working hand wind, big date chrono with one problem, it had no seconds hand???
Look through the draw and find the seconds hand from my first ever rep, a navitimer, cheepo day date thing and the the seconds hand although a bit to short and the tube being a bit loose (crimped that) and having a red end it looks ok.
So at the end of the day i have
My 3717 fully fit
A spare 7750 day date (may be ordering some eta date wheels for this now)
And my 1st blackbird working again in a limited fashion, (Due to the marks and scratches on the dial and hands left by Bad watchmaker this will now be known as crapbird!)
L-R 3717, Blackbird and Crapbird
Definitely keeping up with the motto of learn something new every day, 7750 are no longer as much of a mistery!