Thank you Scott, Dino and Newcomer.
Indulge me briefly while I address one of the most universally (if you'll pardon the pun) MIS-used terms in horology: Tri-Compax.
Warning: Spoiler! (Click to show)
99.9% of the planet misperceive the "Tri" as a reference to the Triple registers in classic 3-6-9 orientation. That's not what it means at all.
"Compax" all by itself denotes that layout in UG terminology. See - it's right there on the dial of my 3-register watch above the 6 o'clock register. Compax, not Tri-Compax:
So where does Tri-Compax come from? Well, from the Triple-Date Moonphase version of the Compax chronograph. See, it's right there on the dial above the 6 o'clock register:
So - UG Compax Chronograph = 3 registers laid out at 3-6-9.
UG Tri-Compax Chronograph = the above, plus a triple date and moonphase complications.
Roger thanks for the info on the Compax vs. Tri-Compax. I've only seen a UG Compax once in person several years ago. Even many years ago we never had any dealers for UG, so there was little to no information about them, and no brochures to give interested people information. Great watch, hope you enjoy it.
I don't think that is the message I ever got from their ads. I never looked at is as some 18 year old would be gifted one in college. I always presumed it was more like, your father will buy this watch, wear it for many decades, you will see him wear it for a long time and many years from now, maybe when you are middle aged or older he will give it to you or you will inherit it when he passes, and you will have good thoughts about it as you remember him wearing it. I never thought, some college kid will be playing drinking games a frat parties with a Calatrava or Perpetual Calendar on his wrist. I think then, the advertising image instead of a father and son being on a boat or doing something together, might be a kid playing quarters at a frat house.
In that run-off between the PP, VC and ALS proposed by mimo - hard for me to decide. I'm usually a die-hard PP fanatic but there's something about the 5070's aesthetics (the cut off numerals, I think, that actually appeal to a LOT of others) that throw me off.
(Pic from a TRF user):
The movements look equally lovely to me, although the ALS does "feel" more unique because of ALS's relatively low production numbers. I mean, as Dino944 has pointed out, the CH 27-70 used in the 5070 is a workhorse used in the 3970 and the 5970 too...Warning: Spoiler! (Click to show)
Still, I wouldn't throw this lovely thing out of bed if it sidled up to me.
Oh wait - I do have two of those lovelies keeping me company. Sweet!
Hopefully, your description of CH-27-70 as a workhorse is a bit of a joke. Sometimes it can be tough to tell in a post. While the movement in the Datograph is exclusive to ALS, I'm not sure I'd describe the Lemania movement used by Patek, VC, and others as a "workhorse", as that seems to have the connotation that its some how kind of plain, but gets the job done. I often hear people call a Valjoux 7750 or various ETA movements good solid workhorses, and I see CH-27-70 as a very high quality movement that is beautifully finished, although a completely different look from those used in ALS's.