Letter from the Publisher

PATEK PHILIPPE
ANNUAL cALENDAR cHRONOGRAPH – REF. 5960R
Developed and manufactured in-house, the self-winding CH 28-520 IRM QA 24H chronograph caliber stands out with
numerous features. It has a flyback column-wheel chronograph, a power reserve indicator, an annual calendar with day,
date, and month, and a day/night indicator. The patented Patek Philippe Annual Calendar is a full-function calendar that
automatically recognizes months with 30 and 31 days. On the dial’s three concentric scales, it indicates elapsed minutes and
hours while the chronograph is running. The day, date, and month apertures are arranged along an arc at the upper periphery
of the dial. The new rose-gold case, with a diameter of 40.5mm, adds an attractive and contemporary touch of nostalgia to
this impressive instrument.
Calendars 97 •