Discover the Cartier Portico Mystery Clock — the last of only six ever created. Crafted by Cartier’s master clockmaker Maurice Couët in 1925, this extraordinary timepiece stands as a triumph of ingenuity and beauty, where innovation meets illusion.
Inspired by the genius of French illusionist Robert-Houdin, these “mystery” clocks defy the eye: their hands appear to float freely, detached from any visible mechanism. Every element, from its Oriental-inspired temple columns to the exquisite rock crystal Shishi figure crowning its top, reflects Cartier’s unparalleled artistry.
Once owned by the legendary Gunter Sachs — art collector, photographer, and husband of Brigitte Bardot — this clock is far more than a timekeeper. It is a symbol of artistic mastery and a milestone in horological history.
This horological masterwork is a highlight of the Important Watches sale taking place at Sotheby's Geneva on 9 November.
Is it a clock? Is it art? Or is it a mystery?
The last of only six Cartier Portico mystery clocks ever created.
This clock stands as both a pinnacle of watchmaking ingenuity and a work of decorative art.
It marks the height of Cartier's extraordinary expertise and craftsmanship,
both as jewellers and clockmakers. It symbolises a turning point in watchmaking history.
Born from the genius of French illusionist Robert Houdin, whose name inspired Harry Houdini,
these clocks defy the eye. The hands appear to float freely,
with no visible connection to the movement. Cartier's genius master clockmaker Maurice Couette
perfected this impossible illusion, hiding the entire mechanism within the dial itself.
Taking a year to craft by hand, the Portico model
was the most spectacular clock ever designed by Cartier.
The design of this revolutionary clock was inspired by oriental art.
Two temple-like columns frame the central dial, paired with Asian architectural details.
All six models have unique features. This one includes a chichi character,
carved in rock crystal, crowning the top of the clock.
This 1925 masterpiece belonged to Gunther Sachs, the charismatic German playboy who married Brigitte
Bardot at the height of her fame. He led an extraordinarily colourful life as a businessman,
gallerist, art collector, filmmaker, photographer and sportsman.
Art and beauty were of paramount importance to everything Gunther Sachs did.
More than a timekeeper, this is a work of art that transformed horology forever.
An enchanting object of wonder, finally emerging from the shadows.