[Q]1570 Calendar Wheel Cam Spring.

[peterSS]

Hello

While I was assembling the Cam Spring I broke it, so I bought a new one to replace it at ebay. (Actually not a new one)
But the new one does not fit to the groove of the movement.
So I wonder if it is not a genuine part.

The left one in the picture is my old one which is perfectly fit to the groove, but the right one is a new one which is not fit to the groove.

Can you give me an opinion if the right one is genuine or not ?

Thanks in advance.