This looks to have some sort of detent escapement - looks like someones project watch
With slight pressure on the train the balance wheel spins with the second hand moving. It needs the chain fixed - can anyone explain this as I do not do chronometers! Thanks for your help, Bob
It is definitely a detent chronometer and it appears to have a spring foot but it may be pivoted. It is a little hard to see. This style of reverse fusee is normally Swiss in origin was made with a lot of names, but rarely if ever that of the actual maker.
It could be a student project. The fusee chain is detached and possibly broken. I presume you can see the action of the detent and escape wheel when you apply pressure to the center. If the escapement is functional you should take care to not damage it. That repair is expensive.
Are you asking how to fix it or where to get it fixed?
I've been careful when putting light pressure on the train & it seems to function very smoothly as it should. ( we'll see if it keeps time - I'd figure it would be very difficult to time.
I have a person to work on it that has done others detent chronometers for me - actually fixed one with bent detent etc & etc
Problem is he runs 1 - 2 years or more after he accepts it ( good that he is only middle aged !
couldn't pass it up for less than $200 even with the condition & only being a movement!