26/03/2026
⏳ Patek Philippe Annual Calendar, Ref. 5035P, 37mm, in Platinum, with Day, Month, Subsidiary Second & Date Display, on Black Patek Philippe Alligator Strap with Platinum Patek Tang Buckle
The first annual calendar wristwatch ever made.
Patek introduced the annual calendar with the reference 5035, creating a new complication category that the entire industry later copied. It was a genuine horological innovation.
It indicates the date for months of 30 and 31 days and needs only one correction per year, at the end of February.
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