I’m not a Roman numeral fan on watches although I do have some, like this Seiko Presage.

For 20 years this Roman Numeral clock has been “ticking” away in my house, so I have my fill of this numeral system (and had to teach it in math books “the C is 100, the L is 50, X is 10, V is 5, etc."

I first saw beautiful Arabic numerals on Paul Gerber's Retro Twin and noticed he shrank the numerals progressively around the dial

F.P. Journe did the same. I loathe partial numerals and those cut by other dial features. I would much rather have varying sizes or absence (as below)

I love the way Blancpain polished the numerals, so they shade from silver to black as you move your wrist

More beauty with Vianney Halter Classic

But blocky, san serif numerals filled with lume are okay in my book too. This Grand Seiko SBGW003 is a rare GS watch with full complement of numbers, I chased for a couple years to land this one.

Railroad style numerals are good as on this Bulova Accutron. I have more than a half-dozen pocket watches (below, at end of post)

Aircraft-style, military dials are good in my eyes, like this Bell & Ross Chonograph

The Ulysse Nardin Marine Chronometer

Swiss Army watch using the same module as ...

the Breitling Aerospace but with a totally-different look.

I will switch from Space to Sea now, with the Marine Chronometer from Stowa

Ochs & Jr Settimania Jr.

I’m fine with markers and no numerals, as in most of my GS watches.

And I have a few watches with sterile dials.
OK, Let's go back in time a century for Pocket watches by Hamilton

Howard

Elgin

Forward 50 years to Universal Geneve

Seiko

and so on...
I think I could pass your test of which watch has which fonts.
Cazalea
Cazalea