Yeah, they are interesting, a bit ahead of the 3135 in a submariner, although that is an underrated movement.
A Frank Muller Fan?! So, you're the one!
It's very cool that you are a fan of high-end watchmaking (haute horology). I love F.P. Journe myself.
It goes hand in hand with a love of high end audio.
As a watchmaker myself, the Tudor MT5612 movement, which is like almost like a mini 3135 but no decoration so is much cheaper to produce. But rest asure the built quality is really like a tank.
F.P.J is turely one of the few best modern brand. Really love it!
Check out De Bethune as well!
Watch & Music is too good match!