Robert Stack. Born in 1919, he started his carrier in 1939. Celebrated American star. Good looking he seemed rather distant. The facets of his character had him cast as strong ansdashing heroes. He became a very successful TV star. Oscar nominee for Written on the wind. Among his most famous movies and series, there are to mention:- 1954 The High and the Mighty- 1956 Written on the wind- 1965 Is Paris Burning?- 1966 The Corrupt Ones- 1987 Perry Mason (TV)- 1991 The Return of Eliot Ness (TV)- 1995 Wild Bill: Hollywood MaverickPatek Philippe "World Timers"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 also by other major names in the Swiss watch industry, such as Agassiz, Rolex and Vacheron Constantin.Patek Philippe created various series of "World Timers" and the earliest known is a probably unique rectangular "galbé" pink gold model, Ref. 515, made in 1937, which was sold by Antiquorum, Geneva, April 10, 1994, lot 502, for SFr. 550'000 (US$ 388,560).From 1937 until about 1940, Patek Philippe used the "World Time" movement in various types of cases:Ref. 542 (Ø 28 mm.), of which only 4 examples are known to date and three were sold by Antiquorum:- Geneva October 17, 1993, lot 431, at SFr. 121'000(US$ 81,700).- Geneva, October 15-16, 1994, lot 608, at SFr. 110'000(US$ 87,300).- Geneva, April 10, 1994, lot 500, at SFr. 231'000(US$ 164,200) with unusual bezel and hands.Ref. 96 Calatrava, which appears to be an unique example, made in 1939.Around 1939-1940 began the production of the series Ref. 1415 (drop-shaped lugs), together with three examples of theRef. 1416 (straight "claw" lugs), both references with a diameter of 31 mm. and on the revolving bezel the names of 30 cities of the world.In 1940, Patek Philippe created, specially for Dr. P. Schmidt,a unique "World Time" chronograph (Ref. 1415-1) wristwatch, in yellow gold, with square push buttons and the names of33 cities of the world, which was auctioned by Antiquorum, Geneva, October 15-16, 1994, lot 516, setting 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 Genève, Wristwatches, by Martin Huber & Alan Banbery.From 1940 onwards, Patek Philippe produced "World Timers"in three main series which include dress watches (Ref. 605, circa 1940-1960's), some with a matt silvered dial or black dial and others with a cloisonné enamel dial; and, wristwatches, with one crown (Ref. 1415, circa 1939-1950's), and two crowns (Ref. 2523 and Ref. 2523-1, circa 1953-1965), some with a matt silvered or gilt dial, some with a guilloché dial, some with an enamel dial and some with a cloisonné enamel dial."World Time" Patek Philippe wristwatches are published in Patek Philippe Genève, Wristwatches, by Martin Huber & Alan Banbery, 1998 Edition, pp. 240 to 247.