2017/ Size 40.5

Representing a rare departure into stainless steel for Patek Philippe’s high-complication lineage, this sporty yet sophisticated timepiece pairs a silvery-white opaline dial with high-contrast black oxidized gold markers and vibrant red chronograph hands. It seamlessly houses a flyback chronograph and a three-aperture annual calendar display within a fully polished case, rounded out by a fluid five-row "drop" link steel bracelet.

Key Features
In-House Calibre CH 28-520 IRM QA 24H: Powered by a premier automatic flyback chronograph movement that integrates a traditional column wheel with a modern vertical disk clutch system.

Power Reserve: Offers a solid power reserve ranging from 45 to 55 hours, complete with a subtle visual power reserve indicator (a minus/plus gauge) located directly below the 12 o'clock date window.

Frequency: Operates at a precise 4 Hz (28,800 vibrations per hour), utilizing Patek's high-tech Gyromax® balance and antimagnetic Spiromax® hairspring.

Clever Dual Complications: Combines an Annual Calendar (which automatically adjusts for 30 and 31-day months, needing correction only once a year in March) with a high-grade mechanical stopwatch.

Intuitive Dial Layout: Showcases day, date, and month windows sweeping along the top curve of the dial, while tracking elapsed chronograph hours/minutes on a unified "monocounter" sub-dial at 6 o'clock that also includes a day/night indicator.

Dynamic Steel Architecture: Designed in a versatile 40.5mm case profile with 13.5mm thickness, featuring a transparent sapphire exhibition caseback to display the intricately finished movement and its 21k gold central winding rotor.

Condition :- Pre-loved