So after seeing the 50th anniversary and the 800Ti separetly, I may have modified my view on what my perfect Doxa would be.
I still want it to be a tool watch, but frankly, it does not need to be more than 300m waterproof. The depth rating arms race is ridiculous and akin to the 50 jewel movements of the 1960's, of which 33 of the jewels were decorative only.
I don't need or want an HRV. It adds needless cost to the watch and is only another point of failure for water resistance. I spent 10 years working in submersibles (submarines), all that time I wore an Omega SMP with a manual HRV, but I can't remember EVER remembering to activate it. We didn't use saturation gas, which was likely a factor, but I never lost a crystal and apart from aesthetics I found it useless. If I didn't need it, the very vast majority of people wanting a daily driver won't need one either.
I REALLY like the slim-ness of the anniversary 300 case, and while the domed crystal is cool, on my perfect watch it would be more of a smooth dome like a vintage 300T.
I also really prefer the individual beads of rice bracelet on the anniversary (I don't like the fake BoR on the 1200T), but I would prefer it not to extend wider than the lug width of the watch - in other words, it should be more like the 1967 BoR bracelet, but with solid links and only a slight taper of maybe 1mm down to a clasp modelled after the 1500T clasp.
I'm also really warming up to Titanium. When I'm at the office I wear a suit, and although I want to wear a Doxa in the office rotation, most watches have excessive heft for a job where I do a lot of writing with my watch on (I'm a lefty and I wear my watch on my left wrist). I also want it to slide easily under a shirt cuff.
So all that said, my perfect Doxa would have:
1) A case the size of the Sub 300 anniversary (42.5mm)
2) Made of Titanium brushed to look like stainless (think M31 or 800Ti look)
3) Metric depth ratings like the Carribean since nobody but the USA uses feet anymore. (I'm Canadian and work in Europe frequently)
4) No HRV
5) Solid end links
6) hybrid bracelet with the dimensions of the 1967 BoR, but with solid beads and the 1500T clasp mechanism
7) shallow domed sapphire crystal for a 300T look, making the watch a little thinner than the Sub 300 anniversary.
8) Possibly Tritium lume. Why? Because superluminova is hard to see near the end of a 2 hour movie in a theatre. My tritium-dialled watches still glow just fine.
9) Ship logo (not the Jenny logo)
10) Vintage style crown with DOXA signature
11) COSC ETA movement, not the "compromise" of the A10.
12) Offered with a Divingstar dial, mainly because I have orange Doxa watches already and the yellow dials are nice and also uncommon.
Such a watch should also work as a great tool watch for 99% of the world's divers, but is far more suited to daily wear for a broader spectrum of watch wearers.
What's your ideal Doxa design and why?