Not at all specific to that watch, that's how triple calendars are normally laid out.
Mechanically, it's extremely difficult to do an in-line triple calendar display in a wristwatch, which is why the Patek in-line perpetual calendar (5236P) is a big deal:
the Patek in-line perpetual calendar (5236P) is a big deal
It's an interesting watch. Quite an achievement. I was expecting it to be very expensive on the second hand market. But there are 43 of them at C24, many of them priced at 20% below retail.
Not at all specific to that watch, that's how triple calendars are normally laid out.
Mechanically, it's extremely difficult to do an in-line triple calendar display in a wristwatch, which is why the Patek in-line perpetual calendar (5236P) is a big deal: