Patek Philippe & Cie, Genève, " World Time " , No. 921709, case No. 632 663, Ref. 1415 HU. Made in 1942, sold on September 1945. Production of this reference started in 1939. Exceptionally fine and very rare, 18K pink gold gentleman's wristwatch with an 18K pink gold Patek Philippe buckle. Accompanied by a fitted box and the "Extrait des Registres".

C. three-body, solid, polished and brushed, hand engraved, revolving reeded bezel bearing the names of 32 places in the world, teardrop lugs. D. pink silver, with applied pink gold Roman numerals and painted indexes, surrounded by a revolving dial in 24 hours for the nocturnal and diurnal hours. Pink gold fancy hands. M. 12'''-120, rhodium-plated, "fausses-côtes" decoration, 18 jewels, straight line lever escapement, monometallic balance adjusted for heat, cold, isochronism and 5 positions, self-compensating Breguet balance-spring, micrometer regulator. Dial, case and movement signed. Diam. 31 mm.

Patek Philippe & Cie, Genève, "World Time", No. 823542, case No. 618277, Ref. 542. Made in 1938, sold on November 25, 1938. Only two examples of this reference were made in 1937. Extremely rare and very fine early 18K yellow gold gentleman's wristwatch, the smallest Patek Philippe World Time wristwatch in the world.

C. three-body, solid, polished and brushed, engraved revolving reeded bezel bearing the names of 31 towns in the world, extended lapidated straight lugs. D. matte silver with painted Roman numerals and indexes, surrounded by a revolving 24-hour dial for nocturnal and diurnal hours. Yellow gold "fancy" hands. M. 10''' rhodium-plated, "fausses côtes" decoration, 18 jewels, straight line lever esca-pement, cut bimetallic balance adjusted for heat, cold, isochronism and 5 positions, flat balance-spring. Dial, case, and movement signed. Diam. 27 mm.

The First World Time Wristwatch with Two Crowns Louis Cottier, Carouge, patent No. 270085. Dated 1950. Very fine and unique, 24-hour "World Time", 18K yellow gold gentleman's wristwatch with two crowns, Louis Cottier?s personal watch.

C. three-body, polished, flat bezel with black enameled 360 degree markers, overhanging pyramidal fluted lugs. D. matte silver outer revolving ring dial bearing the indications of 24 cities around the world, concentric, the 24-hour revolving ring dial in alternating silver and black with painted Arabic numerals for diurnal and nocturnal hours, concentric matte silver ring dial with applied yellow gold Roman numerals and indexes, at the center, a marine map. Yellow gold "Louis Cottier" hands. M. 12''', rhodium-plated, "fausses-côtes" decoration, 18 jewels, straight line lever escapement, monometallic balance, self-compensating Breguet balance spring. Signed and numbered on the movement, numbered on the case. Diam. 37 mm.

Patek Philippe & Cie, Genève, No 720304, case No 306201, Ref. 2523 HU (Heures Universelles). Production of this reference started in 1953. Extremely fine and rare, 18K yellow gold, "World Time" gentleman?s wristwatch with two crowns and poly-chrome cloisonné enamel dial representing the map of Europe and Asia and with 18K yellow gold Patek Philippe buckle.

C. three-body, solid, polished, lapidated curved lugs. D. matte silver revolving ring dial bearing the names of 41 places in the world, at the center, a polychrome cloisonné enamel medallion representing the map of Europe and Asia with applied yellow gold indexes and Roman numerals, concentric, revolving 24-hour dial for the nocturnal and diurnal hours. The winding-crown on the 3 adjusts the hours and the 24-hour ring; the winding-crown on the 9 turns the ring with the city names. Yellow gold "fancy" hands. M. Cal. 12???-400 HU, Geneva quality hallmark, rhodium-plated, "fausses-côtes" decoration, 18 jewels, straight line lever escapement, cut bimetallic balance, shock-absorber, Breguet balance-spring, micrometer regulator. Dial, case and movement signed. Diam. 35 mm.

Patek Philippe & Cie, Genève, "Calatrava", No. 727 309, case No. 309776, Ref. 2597 HS (Heures Sautantes). Production of this reference started in 1958. Extremely fine and very rare, two time-zone, 18K yellow gold gentleman's wristwatch with three hands. The prototype of this reference was made by Louis Cottier in 1957.

C. three-body, solid, polished and brushed, flat bezel, concave lugs, band bearing two buttons moving the hour hand independently forward and backwards, by steps of one hour at a time. D. matte silver with applied yellow gold and painted indexes, auxiliary seconds dial. Two "Dauphine" yellow gold hands for the hours and minutes, and one blued steel "Dauphine" hand for the second time zone. M. Cal. 12-400 HS, stamped with the Geneva Quality Hall-mark, rhodium-plated, "fausses-côtes" decoration, 18 jewels, straight line lever escapement, cut bimetallic balance adjusted to heat, cold, isochronism and 5 positions, shock-absorber, Breguet balance spring, micrometer regulator. Dial, case and movement signed. Diam. 35 mm.

Patek Philippe & Cie, Genève, "Calatrava", No. 711875, case No. 320081, Ref. 570, circa 1965. Very fine and rare, large, center-seconds, 18K white gold gentleman's wristwatch with an 18K white gold Patek Philippe buckle.

C. three-body, solid, polished and brushed, flat bezel, concave lugs. D. sand-finished silver with applied white gold bâton indexes. White gold "Dauphine" hands. M. Cal. 27-SC, stamped with the Geneva Quality Hallmark, rhodium-plated, "fausses-côtes" decoration, 18 jewels, straight line lever escapement, monometallic balance adjusted for heat, cold, isochronism and 5 positions, shock-absorber, self-compensating Breguet balance-spring, micrometer regulator. Dial, case and movement signed. Diam. 35 mm.

Patek Philippe & Cie, Genève, "Calatrava", No. 709888., case No. 312119, Ref. 570, circa 1963. Very fine, large, center-seconds, 18K yellow gold gentleman's wristwatch.

C. three-body, solid, polished and brushed, flat bezel, concave lugs. D. beige with applied yellow gold bâton indexes. Yellow gold "Dauphine" hands. M. Cal. 27-SC, stamped with the Geneva Quality Hallmark, rhodium-plated, "fausses-côtes" decoration, 18 jewels, straight line lever escapement, monometallic balance adjusted for heat, cold, isochronism and 5 positions, shock-absorber, self-compensating Breguet balance-spring, micrometer regulator. Dial, case and movement signed. Diam. 35 mm.

Patek Philippe & Cie, Genève, No. 924397, case No. 633216, Ref. 1491. Made in 1943, sold on February 5, 1944. Production of this reference started in 1940. Fine 18K yellow gold gentleman's wristwatch. Accompanied by the Extract from the Archives.

C. three-body, solid, polished and brushed, scroll lugs, lapidated bezel. D. matte silver with applied yellow gold indexes, auxiliary seconds dial. "Dauphine" yellow gold hands. M. Cal. 12'''-120, stamped with Geneva Quality Hallmark, rhodium-plated, "faus-ses-côtes" decoration, 18 jewels, lever escapement, cut bime-tallic balance, Breguet balance-spring, micrometer regulator. Dial, case and movement signed. Diam. 34 mm.

Patek Philippe & Cie, Genève, No. 1111364, case No. 2614492, Ref. 3428. Production of this reference started in 1960. Very fine and rare, water-resistant, self-winding, 18K yellow gold gentleman's wristwatch.

C. two-body solid, polished, screwed-down case back, rounded bezel. D. white enamel with applied yellow gold bâton indexes, auxiliary seconds dial. "Dauphine" yellow gold hands. M. Cal. 27-460, stamped with the Geneva Quality Hallmark, rhodium-plated, "'fausses-côtes" decoration, 37 jewels, straight line lever escapement, Gyromax balance adjusted to heat, cold, isochro-nism and 5 positions, shock-absorber, self-compensating free-sprung Breguet balance spring, 18K yellow gold rotor. Dial, case and movement signed. Diam. 35 mm.

Patek Philippe & Cie, Genève, No. 761518, case No. 687558, Ref. 2526. Production of this reference started in 1953. Very fine and extremely rare, water-resistant, self-winding, platinum and diamond gentleman's wristwatch with an 18K white gold Patek Philippe buckle.

C. two-body solid, polished, screwed-down case back. D. silvered, round and baguette-cut diamond indexes, auxiliary seconds dial. "Dauphine" white gold hands. M. Cal. 12'''-600 AT, stamped with the Geneva Quality Hallmark, rhodium-plated, "fausses-côtes" decoration, 30 jewels, straight line lever escapement, Gyromax balance adjusted to heat, cold, isochronism and five positions, shock-absorber, self-compensating free-sprung Breguet balance spring, shock-absorber, micrometer regulator, 18K yellow gold rotor. Dial, case, and movement signed. Diam. 35 mm.

Non-Magnetic Watch Co, Geneva, movement by the Association Ouvrière, probably made for the Columbian Exposition in Chicago in 1893, bought by Dobson & Son, 200 Piccadilly, London, W. Extremely rare, very fine 18K gold hunting cased keyless one minute tourbillon regulator with chronometer escapement.

C. Four-body, "bassine et filets", polished, gold hinged cuvette. D. Off-white by Willis, radial Roman numerals, outer minute track, subsidiary sunk seconds. Blued steel "spade" hands. M. 45 mm. (20???), nickel, Technicum, locle caliber, one-minute equidistant carriage with Grether III cage, Earnshaw type spring detent escapement, gold escape wheel, cut bimetallic compensa-tion balance with gold temperature screws, palladium balance spring with Phillips? outer terminal curve and overbanking prevention device, wolf-teeth winding wheels. Signed on the movement Non Magnetic Watch Co, dial signed by the English retailer, and by Willis on the reverse, movement under the dial punched "Ass. ouvrière". Diam. 60 mm.

Watch with 3 Complications Unsigned, Swiss, circa 1890. Very fine and rare 18K gold hunting-cased keyless double-train Grande et Petite Sonnerie clockwatch with minute-repeating.

C. Four-body, "bassine", polished, gold hinged cuvette over glazed gold bezel for viewing the movement. D. White enamel, radial Roman numerals, outer minute track with five-minute Arabic markers, subsidiary sunk seconds. Blued steel "spade" hands. M. 45 mm. (20???), nickel, 35 jewels, straight line calibrated lever escapement, cut bimetallic compensation balance with blued steel Breguet balance spring, tandem winding, repeating on gongs by tripping small slide in the band, striking/silent lever protruding below the bezel at 12 o?clock and grande/petite sonnerie lever at 6 o?clock. Diam. 58 mm.

Chronometer with 7 Complications Ulysse Nardin, Locle, Suisse, No. 17205, circa 1925. Unique and very fine 18K gold hunting-cased keyless astronomical minute-repeating pocket chronometer with perpetual calendar, phases of the moon, chronograph and 30-minute instantaneous register in original fitted leather box, accompanied by original certificate and the company?s Bulletin de Marche dated March 1927.

C. Four-body, "bassine", engine-turned, front with engraved initials, gold hinged cuvette, chronograph activation button on the band at 12 o?clock. D. White enamel, bold upright Arabic numerals, outer minute/seconds track with five-minute/seconds Arabic markers, four subsidiary sunk dials for days of the week, date, months of the four-year leap cycle concentric with minute register, and subsidiary seconds with phases of the moon aperture. Gold "spade" hands. M. 45 mm. (20???), rhodium-plated, 39 jewels, straight line lever escapement, cut bimetallic compensation balance with blued steel Breguet balance spring, repeating on gongs through activating slide in the band. Signed on dial, case and movement. Diam. 54 mm.

Rolex Oyster Chronograph, "Antimagnétic", Ref. 6034. Produced in the 1950's - 60's. Very fine, tonneau-shaped, water-resistant, stainless steel gentleman's wristwatch with round button chronograph, registers, tachometer and telemeter. Accom-panied by a stainless steel Oyster bracelet.

C. two-body, solid, polished and brushed, screwed-down case back and crown, concave lugs. D. matte silver with applied yellow gold radium-coated dart indexes, auxiliary "guilloché" dials for the seconds, the 12-hour and 30-minute registers, outer blue painted tachometer and red painted telemeter graduations. "Alpha" radium-coated yellow gold hands. M. 13''' rhodium-plated, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating Breguet balance spring. Dial, case, and movement signed. Diam. 36 mm. Approx. overall length 185 mm.

Rolex Chronograph Ref. 6238. Production of this reference started in the 1960's. Fine tonneau-shaped, water-resistant, stain-less steel gentleman's wristwatch with round button chrono-graph, registers and tachometer. Accompanied by a stainless steel Oyster bracelet.

C. three-body, polished and brushed, screwed-down case back and crown. D. satiné silver with applied steel tritium-coated in-dexes, auxiliary "guilloché" dials for the seconds, the 12-hour and 30-minute registers, outer tachometer graduations. "Bâton" tritium-coated steel hands. M. 13''' rhodium-plated, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating Breguet balance spring. Dial, case, and movement signed. Diam. 36 mm. Approx. overall length 175 mm.

Rolex "Oyster Chronograph, Antimagnetic", Ref. 6036, so-called "Jean-Claude Killy". Produced circa 1952. Very fine and rare, tonneau-shaped, water-resistant, stainless steel gentleman's wristwatch with round button chronograph, registers and triple date. Accompanied by a stainless steel Oyster bracelet.

C. two-body, polished and brushed, screw-down case back and crown. D. matte silver with applied steel pyramidal and bâton indexes, "guilloché" auxiliary dials for the seconds, the 12-hour and 30-minute registers, outer blue painted graduation for the days of the month, apertures for the days of the week and the months. "Alpha" steel hands. M. 13''', rhodium-plated, 17 jewels, straight line lever esca-pement, mono-metallic balance, shock-absorber, self-compensating Breguet balance-spring. Dial, case and movement signed. Diam. 36 mm. Approx. overall length 190 mm.

Rolex Oyster Perpetual "Day Date", Superlative Chronometer Officially Certified, Ref. 6611. Made in six examples, circa 1959. Very fine and extremely rare tonneau-shaped, center-seconds, self-winding, water-resistant, stainless steel gentleman's wristwatch with day and date and a stainless steel Oyster bracelet.

C. three-body, polished and brushed, dedicated screwed-down case back and crown, crystal with "Cyclops" lens. D. satiné silver with tritium-coated steel indexes, aperture for the date. Tritium-coated "Bâton" steel hands. M. Cal. 1556, rhodium-plated, 26 jewels, straight line lever escapement, mono-metallic balance adjusted to temperatures and 5 positions, shock-absor-ber, self-compensating Breguet balance spring. Dial, case, and movement signed. Diam. 36 mm.

Rolex Cosmograph, Ref. 6239, with pulsometer dial and steel bezel. Produced in the 1970's. Extremely fine and probably unique, water-resistant, stain-less steel, gentleman's wristwatch with round button chronograph, registers and tachometer, with a stainless steel Oyster bracelet.

C. three-body, polished and brushed, screwed-down case back and crown, tachometer graduation on the bezel to 200 units per hour. D. bicolored matte silver and black with applied steel indexes and tritium dots, auxiliary "guilloché" sunk dials for the seconds, the minute and 12-hour registers, pulsometer. "Bâton" tritium-coated steel hands. M. 13''', rhodium-plated, 17 jewels, lever escapement, monometallic balance adjusted to 3 positions, shock-absorber, self-compensating Breguet balance-spring. Dial, case and movement signed. Diam. 37 mm. Approx. overall length 190 mm.

Rolex Oyster "Deep Sea Special", No. 35., movement No. 641867. Produced in a limited edition following the Jacques Piccard expedition in 1960. This watch is dated January 23, 1960. Extremely rare and important, highly waterproof down to 10908 m/35789 ft, able to resist pressures of one ton per square centimeter, center-seconds, stainless steel and yellow gold diver's wristwatch with a stainless steel and yellow gold riveted Oyster bracelet.

C. two-body, thick, bicolored, polished and brushed, heavily screwed-down case back and special waterproof winding-crown, bicolored brushed steel and polished gold elongated hooded lugs, polished bezel, deeply domed crystal. D. black with tritium-coated Bâton, round and dart indexes. "Epée" tritium-coated gold hands. M. cal. 1570, rhodium-plated, 18 jewels, lever escapement, monometallic balance and self-compensating flat balance spring. Dial, case and movement signed. Dim. 42 x 62 mm. Approx. overall length 195 mm.

Doves and Flowers Bovet, Fleurier, No. 861, circa 1845, made for the Oriental market. Very rare and fine true pair of 18K gold and painted on enamel center-seconds, pearl-set watches with special escapements, in original Morocco fitted box.

C. Three-body, "Empire", back finely painted with pair of doves in a flower nest against a pink background, band decorated with floral and foliate champlevé enamel, bezels, pendant and bow set with half pearls over champlevé enamel, spring-loaded gold cuvette hinged to the movement ring. D. White enamel, radial Roman numerals, outer minute/seconds track with fifteen-minute/seconds Arabic markers. Blued steel "spoon" hands. M. 47 mm. (21???), gilt fully engraved Chinese caliber with standing barrel, 12 jewels, ruby duplex escapement, very unusual uncut 3-arm bimetallic balance, blued steel flat balance spring. Signed on the movements, same number on both watches, same number on both cases (861). Diam. 58 mm.