...that's the Gallet Tourb, not the 3-hand watch
But then again, who cares! Excellent photo -- you did a great job catching the striping on all three movements in good light (which I know is not simple), and all three watches look great. In this photo the Ferrier striping looks particularly good -- would love to see more shots at some point to compare further.
I had forgotten (or didn't know) that your Observatoire has a RG tourb-style balance cock -- way cool!
Thanks for posting this shot -- I'm sure I'll be coming back to this one.
Best,
Gary