5550P-001 | Perpetual Calendar Advance Research

  • Collection: Grand Complications
  • Model reference: 5550P-001
  • Case/Size: Platinum, 37mm
  • Dial: Silver
  • Movement: Manual-winding
  • Functions: Moon phase, Date, Month, Perpetual calendar
  • Specificity: Limited to 300 pcs
  • Condition: Mint
  • Price: Upon request
Manufacturer’s International Warranty

All the watches we offer come with a 2 year warranty but this timepiece enjoys a guarantee covered by the manufacturer, valid internationally at any flagship store or official retailer carrying the respective brand. If you wish we are happy to assist you handling this task. Scope of coverage subject to manufacturer’s policy, please contact us for more information.


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Best known for their Grand Complications watches Patek Philippe masters the “Haute Horlogerie” and are arguably the best in the industry.

In 1989, to commemorate the 150th anniversary of the manufacture, Patek Philippe developed what is one of the most complicated portable timepiece in the world: the Calibre 89 with 33 complications but half a century ago in 1932 they had built the “Henry Graves Supercomplication” which had at that time 24 complications, including Westminster chimes, a perpetual calendar, sunrise and sunset times, and a celestial map of New York as seen from Graves’s apartment on Fifth Avenue.

For decades they did held the title of the most complicated watches built. Mastering their craft they perpetuated the skills and traditions to deliver in their current collection pieces of the highest quality.


This very elegant timepiece has a round case of 37mm in platinum surrounding a beautiful silver dial with vertical brushing. This dial reflects the perfect balance of color with the lovely gold hands with luminescent coating and the gold hour markers. The perpetual calendar function is displaying the day, date, month and leap year but also the 24-hours indication and the moon-phases with the inscription “Advance Research” at 6 o’clock.

This inscription is the result of a new development using silicon and this time called Silinvar component called GyromaxSi.

All this is visible through the sapphire case-back and also has a magnified section over the GyromaxSi balance so you can admire it.

Fix the brown alligator strap to enjoy this very rare timepiece!

** Limited Edition of only 300 pieces **



Patek Philippe – Bio

Patek Philippe & Co. was founded in 1839, located in Geneva and the Vallée de Joux. It designs and manufactures timepieces and movements, including some of the most complicated mechanical watches. It is considered by many experts and aficionados to be one of the most prestigious watch manufacturers.
In 1868, Patek Philippe made their first wristwatch, which was sold on November 13, 1876 to the Hungarian Countess.
It is the last independent, family-owned Genevan watch manufacture with uninterrupted operating history spanning nearly 180 years.

Additional information


Accompanied by a Patek Philippe Certificate, product literature and a presentation box