Dear all,
I am curious about some AP models (e.g., Ref.5548 & Ref.25657 ) that, without a leap indicator, can these models handle leap year?
Or the user needs to manually adjust it every four years?
Thanks in advance.

 

I believe that all models after 1950 self correct for leap year. Audemars Piguet perpetual calendars will self adjust for the leap year until 2100. You shouldn't have to manually adjust every four years and you shouldn't have to adjust in your lifetime unless you're 5.

Links of interest
https://www.revolution.watch/hk/per...ual-calendar-wristwatches-of-audemars-piguet/

https://www.grayandsons.com/blog/back-to-basics-what-is-a-perpetual-calendar-watch/

 

Many early perpetual calendar wristwatches, including Patek Philippe and Audemars Piguet, did not have a leap year indicator but that has no effect on their ability to handle the Feb 29 issue every four years.

Here is my AP perpetual calendar (Ref. 25682) from 1992.....full perpetual calendar as indicated on the back of the case. Just keep it wound and it'll do its thing month after month, year after year.

 

^ nice

but without the leap year indicator, it’s a trial and error on feb 29/mar 2 when setting it?

 

I had it last overhauled about three years ago, and assumed the AP Service Center set the correct year. They did, it showed Feb 29th this year. As long as it is in your possession there is no need to fret about the correct year.

 

Do you mind revealing the range of service fees of a perpetual calendar in the AP Service Center?
Just would like to have a rough idea about the maintenance cost

 

About $1,500 for a basic overhaul, extra if any significant parts are needed. Case refinishing not included.

 

A bargain compared to Patek’s $2,500.00. Of course, JP Morgan once said, “If you have to ask the price, you can’t afford it.”

 

once set properly i agree.

but if somebody messes up the settings.

 

Beautiful. Great to see something other than Royal Oaks.

 

That truly is very nice looking.

 

Im not usually a fan of square/rectangle watches, but that one is very nice!