Patek Philippe Platinum Annual Calendar Chronograph
Cal. CH 28-520 IRM QA 24H automatic movement, dark grey dial, applied baton numerals with luminous accents, outer minute divisions, luminous hands, large monocounter for 60 minute and 12 hour registers, three windows for day, date, and month, power reserve indicator below date window, circular case, two round chronograph buttons in the band, display screw back, platinum Patek deployant buckle, case dial and movement signed
Accompanied by Patek Philippe presentation box and Certificate of Origin
In 2006, Patek Philippe introduced the reference 5960 in Platinum with a grey dial. The model was Patek Philippe’s first self-winding chronograph, and combined with an annual calendar complication it was quickly sought after for its everyday wearability.
The large subsidiary dial records minutes and hours, with outer red numerals counting 30 minutes, inner blue numerals counting 60 minutes, recorded by a red hand. The inner-most dial and smaller blue hand record up to 12 hours. The dial also contains a small circular window for day and night indication. The annual calendar complication self-adjusts for months that end in 30 and 31 days, and only needs to e adjusted once a year.
The model was updated to include further versions in platinum (with blue and black dials) and in rose gold. Nevertheless, the original platinum 5960 with grey dial is sought after for its elegant and wearable design, and place in Patek Philippe’s history as their first automatic chronograph. In 2014, the 5960 in stainless steel was introduced, and all other metals ceased production.