Patek Philippe Ref. 5216
After 18 successful years, a legendary Grand Complication with minute repeater, tourbillon, perpetual calendar, retrograde date, and moon phases unveils its new identity

• Technical data
  
• Grand Complication Ref. 5216 in rose gold
  Minute repeater, tourbillon, perpetual calendar with retrograde date, moon phases
  
• Movement: Caliber R TO 27 PS QR LU
  Manually wound mechanical movement, minute repeater, tourbillion, perpetual calendar with flyback date hand. Day of week, month, leapyear cycle and moon phases in apertures. Subsidiary seconds.
  
• Overall diameter: 28 mm
  
• Height: 8.6 mm
  
• Number of parts: 506
  
• Number of jewels: 28
  
• Power reserve: Max. 48 hours
  
• Balance: Gyromax®
  
• Frequency: 21,600 semi-oscillations per hour (3 Hz)
  
• Tourbillon: Steel cage, 69 parts, 0.3 grams
  1 revolution per minute
  Tourbillon on the same arbor as balance and fourth wheel
  
• Balance spring: Breguet
  
• Balance spring stud: Adjustable
  
• Functions: Two-position crown
  – Pulled out: To set the time
  – Pushed in: To wind the watch
  
• Hallmark: Patek Philippe Seal
  Patek Philippe rate certificate for tourbillon watches
  
• Displays: Hours and minutes from the center
  Retrograde date with a red-tipped arrow flyback hand from the centerand date scale on an arc from 8 to 4 o'clock
  Subsidiary dials:
  – Subsidiary seconds at 6 o'clock
  Apertures:
  – Day of week at 9 o'clock
  – Month at 3 o'clock
  – Moon phase at 6 o’clock
  – Leap-year cycle at 12 o'clock
  
• Corrector push pieces: – Date and day between 11 and 12 o'clock
  – Month and leap year between 3 and 4 o’clock
  – Moon phase between 5 and 6 o’clock
  – Day between 6 and 7 o'clock
  Delivered with correction stylus in ebony and 18K rose gold
  Minute repeater striking the hours on the first gong, the minutes on the
  second gong, and the quarter-hours on both gongs.
  Features
  
• Case: 18K rose gold (5N), solid back in 18K rose gold and interchangeable display back with sapphire-crystal window.
  
• Dimensions: Diameter 39.5 mm
  Height: 12.23 mm
  Width between lugs: 21 mm
  
• Slide: On the left side of the case to actuate the minute repeater
  
• Dial: Silvery opalescent
  13 applied "obus" markers in 18K rose gold
  Dauphine hands in 18K rose gold for hours and minutes
  Date scale on an arc between 8 and 4 o'clock in the center of the dial with black Arabic numerals from 1 to 31 and a red-tipped arrow hand
  Minute pearls on the dial periphery
  
• Strap: Alligator leather with square scales, hand-stitched, shiny chocolate brown, foldover clasp in 18K rose gold