The Patek Philippe Annual Calendar Chronograph (ref. 5905R-010) is a men's dress watch with a 42 mm round case in rose gold. It has a blue dial under sapphire crystal.
It is powered by the self-winding mechanical calibre CH 28-520 QA 24H with a power reserve of up to 55 hours. Functions: Chronograph, date, month, day of the week, day/night indicator. Water-resistant to 30 m. The watch is fitted with an alligator leather strap with a pin buckle in rose gold.
This example is brand new, dated 2026, and comes with the original box and papers.
