Image courtesy of Patek Philippe, official product page
Grand Complications
Patek’s top complication tier, above the Complications line: perpetual calendar chronographs, minute repeaters, and the astronomical "Celestial" star-chart watches. The 5270 (perpetual calendar chronograph, cal. CH 29-535 PS Q) and the 6104 "Celestial" (sky-chart dial showing the exact night sky over Geneva) both live here — Patek’s own site groups them under this collection.
top-luxurymodernPatek Cal. CH 29-535 PS Q -- in-house manual-wind column-wheel chronograph, 28,800bph, 65h PR, 33j; perpetual calendar with moonphase and leap-year indicator; same movement family as the 5172G/537041mm2018–present
top-luxurymodernPatek Cal. 240 LU CL C -- in-house automatic with 22K gold mini-rotor; sky-chart astronomical complication showing the exact night sky over Geneva, moon-phase, moon orbit, and sidereal time44mm2017–present
