Dr No[Moderator Omega - Wristscan]
34925
Here's a pic posted many years ago on our JLC forum . . .
May 25, 2020,13:48 PM
. . . that illustrates the differing levels of leading and trailing date wheels. The leading indicator [1] is higher than the trailing indicator [9].
PS - my foggy memory says there's an even earlier execution of the large date complication, going back to the '50s. GO was, though, the first to execute a level large date in widespread production.
PPS - here's a more recent photo that shows the differing levels between JLC date wheels more clearly.