amanico[JLC Moderator]
401340
Girard Perregaux Olimpico Chronograph Ref 8846N. Beautiful outside and inside.
In the world of vintage chronographs, we tend to forget that Girard Perregaux made some very nice ones.
Such as this 8846N.

And its Excelsior Park movement:
There are some earlier vintage GP Chronos which are even prettier!
I will try to see if I have enough pictures to make a post on that matter. But if you have something to share, feel free to do it.
Best,
Nicolas