quattro[Moderator]
20478
Concerning the setting of the perpetual calendar without a leap year indicator (which also concerns other models like the 3448),
Patekova showed us an instruction manual in one of his post (click to see) stating:
There should be no need to set the calendar for leap-years as this is in principle already done by the time you buy the watch. No further setting is required, and your watch will automatically display February 29. If the watch has not been adjusted for leap years, it should be left with an official Patek Philippe Agent for the necessary correction.
As far as the date ring is concerned, I agree with you: it doesn't look very nice. My favortie models are the 2497 with Vichet case and 1st series dial (Arabic numerals for the even numbers).
Have a nice Sunday.