The Patek Philippe reference 5004 features a split-seconds chronograph (also known as rattrapante or double chronograph) along with a perpetual calendar and moonphase complications. The split seconds chronograph and perpetual calendar are two of the most prestigious complications that a watch can have. Building on that, the 5004 achieves a rare gestalt, where the sum of the parts exceeds the individual components.
The case is 18k rose gold and is 37mm in diameter by 15mm thick. Front and display back sapphire crystals. Chronograph split seconds button is embedded in the winding crown. Pump style chronograph pushers. The stepped lugs are crisp and this watch is very clean and like new.
The dial is silver with applied rose gold arabic numerals and leaf style hands. The day and month are shown in the apertures below 12 o’clock; the 3 o’clock subdial displays the leap year cycle and chronograph 30 minute totalizer; 6 o’clock subdial displays the moonphase and date; 9 o’clock subdial displays constant seconds and 24 hour time.
Movement is the manual winding Patek Philippe Caliber CHR 27-70Q with 28 jewels, 10 bridges, Gyromax balance, beating at 18,000 vibrations per hour, 60 hour power reserve, Breguet balance spring and 407 individual parts. This movement is stamped with the Geneva Seal.