Another weird display question

[Colnago]

This one really has had me perplexed for years and years, nobody has ever given a reasonable answer....sure there will be more than one opinion here....

Dials with Roman numeral displays.....very simple....we learned at school that the Roman numeral for Four was IV...in other words one (I) before five (V).....

So why do watch and clock dials allways show four as IIII??????

From what I have seen there are absolutely no exceptions.....

Now, some might say that it's so you don't confuse IV (4) with VI (6) with the fonts flipping from top half to bottom half due to dial design....ok, but in reallity on a circular (or even rectangular) watch or clock dial how are you ever going to really make that mistake????

That's about the only explanation I have ever heard and I don't go with it.......any opinions or does anyone really know for sure????