Pre-Owned Patek Philippe Annual Calendar Chronograph 5960

2006 marked Patek Philippe's first self-winding, in-house chronograph — and the 5960 was it. The 40.5mm stainless steel case houses calibre CH 28-520 IRM QA 24H, a flyback chronograph with vertical clutch, column wheel, annual calendar with three apertures across the dial, a monocounter at 6 o'clock, and a power-reserve indicator. Patek discontinued the steel variant in 2018 after a four-year production window, and each example available at The 1916 Company is fully authenticated and backed by our 2-year warranty.