It is one of the most iconic complications  of Patek Philippe. With precious and refined design, it is an ideal choice for women.

By melding forward-looking design and sought-after horological complications, Patek Philippe has created a totally unusual timepiece: the Annual Calendar Chronograph. 
The dial, inspired by the 2010 Annual Calendar, sports an inimitable face with new colors and interesting details. The outer chronograph scale encircles a crisply graduated minute scale.

Between 10 and 2 o’clock, the broad ring with the white-gold hour markers features the three apertures for the day, date, and month indications of the Annual Calendar. A large 60-minute chronograph counter is positioned at 6 o’clock. It has a small round aperture for the day/night indication.

Both dials harmonize beautifully with the cool gloss of the prominent 42-millimeter platinum case. The contours of the bezel and caseband merge seamlessly with the gracefully curved strap lugs.

The outer rounds of the start/stop pusher, the crown, and the reset pusher are perfectly arranged along an arc parallel to the caseband. Here, premeditated design pleases the eye and optimizes user-friendliness. The case accommodates the self-winding caliber CH 28-520 QA 24H movement with a chronograph and the Annual Calendar which only has to be corrected once a year on March 1.
This fascinating opus consists of 402 parts crafted with extraordinary precision and finished by hand. In keeping with traditions, the stopwatch functions are controlled by a column wheel, while power to the chronograph hand is transmitted by a modern disk clutch.

Even though it is flat, the Spiromax balance spring, made of Silinvar, breathes symmetrically thanks to its patented geometry. The watch is worn on an alligator strap with large square scales, color-matched with the dial and secured with a platinum prong buckle.

The timeless elegance of its design, the 374 pure diamonds adorning the bezel, case, lugs, crown and buckle, and the enduring value of a Patek Philippe complicated watch transform this jewel of watchmaking aesthetic and technique into a precious object whose fresh charm will continue to delight generations to come.