Yes, you're correct. In some traditional Roman clocks, especially older ones, the number four is indeed represented as "IIII" rather than "IV". This practice has historical roots that go back centuries.
The use of "IIII" instead of "IV" on Roman numeral clocks dates back to the early days of clock making in Europe. There are a few theories about why this became a common convention:
Aesthetic or Symmetrical Reasons: Clock faces were often designed to be symmetrical for aesthetic reasons. Having four "I"s in a row looked more balanced than having an "IV".
Ease of Manufacturing: In the days before precision machinery, it may have been easier for clock makers to stamp out four "I"s rather than creating the more complex shape of a "V".
Precedent: It could simply be that one early clock maker used "IIII" and it became a tradition that was passed down through generations.
While "IIII" isn't the standard representation in written Roman numerals, it has become an accepted convention in the context of clocks. You'll still see it on many antique clocks and even some newer ones made in the style of traditional designs.
So, while "IV" is the correct and standard way to write the number four in Roman numerals, "IIII" is a recognized and widely accepted