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The “Cobra”
The Patek Philippe Ref. 3414 is nicknamed the “Cobra” because it was the main source of inspiration for the modern Urwerk UR-CC1 King Cobra.

This wristwatch, with its dual linear display of hours (at the bottom) and minutes (at the top), wad designed by legendary designer Gilbert Albert.

credit: Bibliothèque de Genève (Gilbert Albert), @art_of_horology_ (watch) & kids.nationalgeographic (cobra)The
yellow gold case measures
27.3 x
43.8 x
15.8 mm and the total
length of the
yellow gold bracelet is about
190 mm.
credit: @wow.sg
The watch is
on display at the
Patek Philippe Museum, Inv. P-110, in the
window no. 73, dedicated to the
Gilbert Albert timepieces.
credit: personal photoHowever, the
mechanism was
invented and
engineered in
1958 by
Louis Cottier, best known for his
World Time complication.
credit: Oracle TimeIt involves
two synthetic
superimposed cylinders, half
white and half
black:
- one for the hours (making one rotation every 12 hours)
- and the other for the minutes (making one rotation every 60 minutes)
Surprisingly, the superimposed cylinders are linked to and powered by the legendary hand-wound caliber 9-90, which equips most of the Patek Philippe shaped watches from the 1940s and 1950s.
credit: Swisswatches Magazine
The watch is presented in detail on page 234 of the book by Martin Huber & Alan Banbery, Patek Philippe Genève Wristwatches (second edition, 1998).
As you can read, a patent on the mechanism was filed in 1959 but the watch never went into serial production (probably because the mechanism wasn't efficient enough) and the prototype remains a piece unique.






The watch is also
described on page 353 of
Volume II of the
Patek Philippe Museum catalog:
credit: personal photos of my own copy of each book
Here are
three more
photos of the “
Cobra” (
stupidly I only
photographed the
Gilbert Albert display
window as a
whole):
credit: Tony Traina (Unpolished), cool hunting & @robengstrom1832And,
finally, here are some
photos of a
rare so-called "
albino"
version of the
main successor to the
Patek Philippe “
Cobra” ref. 3414: the
Urwerk UR-CC1 King Cobra:
credit: Watch Guru
Of course, it's
not a
watch I
would personally
want to
wear, but it remains a
fascinating piece of
watchmaking history.
Don't you think so too?
Thanks for reading.
Best, Emmanuel