Watch aficionados will probably know this, but I actually never noticed.

Watch aficionados will probably know this, but I actually never noticed.
https://steampunkutopia.com/blogs/news/why-do-watches-use-roman-numeral-iiii-instead-of-iv

Was looking at the Orsay museum clock yesterday and was noticing this without knowing the answer. Thanks.

@Eric_Crochemore ah ha ! I knew you were french ;o)
(or just visiting ?)

By the way, the answer I read a couple of time is to avoid confusion between IV and VI, AND (the more interesting answer is) to equilibrate left and right side of the watch

XII (centered)

I <-> XI (1 bar / 3 bars : unbalanced)
II <-> X (2 bars / 2 bars : perfect balanced
III <-> IX (3 bars / 3 bars : perfect balanced)
IIII <-> VIII (4 bars /5 bars : “almost” balanced)
V <-> VII (2/4 bars : unbalanced)

VI (centered)

so :
IV <-> VIII would be unbalanced and ugly)

@Roland_Tanguy_Lannuz oui, j’habite dans le 91… :grinning:

@Andrew_Somers very interesting, thank you