Notes
The ?World Time? system
was invented around
1935 by Louis Cottier
(1894-1966), famous independent
watchmaker in Geneva.
This ?World Time? system
was used by Patek Philippe
and by other major names in the
Swiss watch industry, such as Agassiz,
Rolex and Vacheron Constantin.
Patek Philippe created various series of
?World Timers? from 1937 to the mid-1960?s:
Ref. 515 , a rectangular ?galbé? pink gold model
made in 1937, with the names of 28 cities in the world on
the dial, the time differences between them based on Greenwich Mean
Time. It is the earliest known and only three examples are known
today. One was sold by Antiquorum, in Geneva, on April 10, 1994, lot
502, for SFr. 550'000 (US$ 388,560). Ref. 542 HU (Ø 28 mm.), started
around 1937, bears the names of approximately 30 cities in the world
on the revolving bezel. Only 4 examples are known to date, three of
which were sold by Antiquorum: - Geneva, October 17, 1993, lot 431,
at SFr. 121,000 (US$ 81,700).
- Geneva, April 10, 1994, lot 500, at SFr. 231'000 (US$164,200) with
unusual bezel and hands.
- Geneva, October 15-16, 1994, lot 608, at SFr. 110'000 (US$ 87,300).
Ref. 96 HU Calatrava, with the names of 28 cities in the world on the
dial, appears to be an unique example made in 1939.
Ref. 130, of which only one example is known and was made on special
order by Patek Philippe in 1939, is an 18K yellow gold mnemonic
?World Time? chronograph wristwatch, with square push buttons,
register and tachometer. This watch does not have a ?World Time?
movement but features a ?World Time? dial with the names of 24
cities of the world. The time difference between the various cities is
based on Berlin, which is placed at noon. This watch was sold by
Antiquorum, in Geneva, on April 18-19, 1998, lot 40, for SFr. 355?500
(US$ 235,000), establishing a world record for this type of watch.
Ref. 1415 HU began to be produced around 1939-1940. It has dropshaped
lugs, a diameter of 31 mm., and on the revolving bezel the
names of approximately 30 to 41 cities in the world. This model was
produced:
- in yellow gold with silvered dial
- in yellow gold with cloisonné enamel dial representing various
continents
- in pink gold, with silver,
champagne or pink
dial
- in pink gold, with cloisonné
enamel dial representing
variouscontinents -
Antiquorum sold such a watch
in Geneva, on November 13-14,
1999, lot 520, which set a World
Record at SFr. 1?345?500 (US$ 868,065)
for this type of model.
- in platinum with silvered dial, the only one
known, was sold by Antiquorum, in Geneva, on
April 13-14, 2002, lot 608, for SFr. 6'603'500 (US$ 4,026,500),
establishing a world record.
Ref. 1416 HU is similar to Ref. 1415HU and produced at the same
time, with the only difference that it has straight ?claw? lugs.
Three examples are known today.
Ref. 1415-1 was created in 1940, especially for Dr. P. Schmidt. This is
a unique ?World Time? chronograph wristwatch, in yellow gold, with
square push buttons and the names of 33 cities of the world. It was
auctioned by Antiquorum, in Geneva, on October 15-16, 1994, lot 516,
attaining what at the time was a World Record, at SFr. 990'000
(US$ 785,714). This watch is illustrated on the front cover and p. 270
of the new edition (1998) of Patek Philippe Wristwatches, by Martin
Huber & Alan Banbery.
Ref. 605 HU was produced circa 1940-1960?s and is a series of dress
watches, with on the revolving bezel the names of approximately 30
to 41 cities in the world. Some examples have a matte silvered dial or
black dial and others have a cloisonné enamel dial.
Ref. 2523 HU and Ref. 2523-1, with two crowns, were produced
circa 1953-1965: they bear the names of approximately 40 cities of
the world on the revolving bezel. They were made:
- in pink gold, with silvered guilloché dial
- in pink gold, with translucent enamel dial
- in pink gold, with cloisonné enamel dial representing various
continents
- in yellow gold, with silvered guilloché dial
- in yellow gold, with translucent enamel dial
- in yellow gold, with cloisonné enamel dial representing various
continents
- one example is known to date in white gold, with cloisonné enamel
dial representing various continents.
?World Time? system
Patek Philippe