I don't know if this would get any attention in the sales forum, but if it needs to be moved that's cool. I have a 561 chronometer movement that runs but needs a service. I need a 551 chronometer instead. Does anybody know a good place to either find a 551 or has one they want to swap?

Here's my 561:

It ain't pretty, but it could be - and it does run and seems to be in order.