Precision Timekeeper with 2 ComplicationsRolex Oyster Perpetual 2011, 2000ft/600m., Superlative Chronometer, Officially Certified, Ref. 1665, second generation, delivered to the COMEX. Production of this reference started in 1971.Fine and rare center-seconds, self-winding, water-resistant to 2000ft./600m., stainless steel gentleman's wristwatch with date and a stainless steel "Fliplock" Oyster bracelet.

C. three-body, polished and brushed, screwed-down case back and crown, graduated revolving bezel for the decompression times, "Triplock" winding-crown on the 9, on the band, the gas escape valve, crystal with "Cyclops" lens. D. black with tritium-coated round, triangular and bâton indexes, aperture for the date. "Skeleton" tritium-coated hands. M. Cal. 1570, rhodium-plated, 26 jewels, lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock-absorber, self-compensatig Breguet balance spring.Dial, case and movement signed. Diam. 40 mm.

Timekeeper with 3 ComplicationsRolex Cosmograph "Daytona", so-called "Paul Newman", Ref. 6241, with black bezel. Produced in the 1970's.Fine and rare water-resistant stainless steel gentleman's wristwatch with round button chronograph, registers, tachometer and by a stainless steel Oyster bracelet.

C. three-body, polished and brushed, screw-down case back and crown, tachometer graduation on the bezel to 200 units per hour. D. bicolor matte silver and black with applied steel tritium-coated indexes, auxiliary dials for the seconds, the 12 hours and 30 minutes registers. "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. overhall length 205 mm.

Timekeeper with 3 ComplicationsRolex Cosmograph "Daytona", so-called "Paul Newman", Ref. 6241, with 6239 gold bezel. Produced in the 1970's.Very fine, water-resistant, 18K yellow gold gentleman's wristwatch with round button chronograph, registers and tachometer, with an 18K gold polished and brushed yellow gold Oyster bracelet.

C. three-body, solid, polished and brushed, screwed-down case back and crown, tachometer graduation on the bezel to 200 units per hour. D. bicolor champagne and "guilloché" black with tritium-coated applied gold indexes, auxiliary dials for the seconds, the 12 hours and 30 minutes registers. "Bâton" tritium-coated gold hands.M. Cal. 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 195 mm.

Timekeeper with 3 ComplicationsRolex Oyster, Superlative Chronometer Officially Certified Cosmograph, Ref. 6263/6265, with black bezel. Production of this reference started in 1971.Fine water-resistant, 18K yellow gold gentleman's wristwatch with round button chronograph, registers and tachometer, with an 18K yellow gold Oyster bracelet.

C. three-body, solid, polished and brushed, screwed-down case back, crown and buttons, tachometer graduation on the bezel to 200 units per hour. D. bicolor black and gold with applied gold indexes, auxiliary dials for the seconds, the 12 hours and 30 minutes registers. "Bâton" tritium-coated yellow gold 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 200 mm.

Precision Timekeeper with 1 ComplicationRolex Oyster Perpetual, "Submariner", 660ft./200m. Ref. 5513, third generation. Production of this reference started in the 1960's.Fine and extremely rare center-seconds, self-winding, water-resistant to 660ft./200m., stainless steel gentleman's wristwatch with the Submariner logo in red Arabic characters.

C. three-body, polished and brushed, screwed-down case back and crown, graduated revolving black bezel for the decompression times, "Triplock" winding-crown protected by the "Crown Guard". D. black with tritium-coated round, triangular and bâton indexes, at the center, the letter "T" in a circle. "Skeleton" tritium-coated hands.M. Cal. 1530, rhodium-plated, 17 jewels, lever escapement, monometallic balance, 2 adjustments, shock-absorber, self-compensating Breguet balance spring.Dial, case and movement signed.Diam. 40 mm.

Timekeeper with 3 ComplicationsRolex Oyster Cosmograph "Daytona", Ref. 6265, with steel bezel, sold on February 25, 1977.Fine, water-resistant, stainless steel gentleman's wristwatch with round button chronograph, registers and tachometer, with a stainless steel Oyster bracelet. Accompanied by fitted box and certificate.

C. three-body, polished and brushed, screwed-down case back, crowns and buttons, tachometer graduation on the bezel to 200 units per hour. D. bicolor black and "guilloché" silver with applied steel indexes, auxiliary dials for the seconds, the 12 hours and 30 minutes registers. "Bâton" tritium-coated yellow 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 movemnt signed.Diam. 37 mm.Approx. overall length 200 mm.

Precision Timekeeper with 3 ComplicationsRolex Oyster Perpetual, "Day-Date", Superlative Chronometer Officially Certified, Ref. 18200. Produced in the 1980's.Fine tonneau-shaped, center-seconds, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch with day and date with an 18K brushed and polished yellow gold President bracelet.

C. three-body, solid, polished and brushed, ridged bezel, engraved screwed-down case back and crown, crystal with "Cyclops" lens. D.brushed gold with applied yellow gold indexes and tritium dots, apertures for the day and the date. "Bâton" tritium-coated yellow gold hands. M. Cal. 3155, rhodium-plated, "fausses côtes" decoration, 31 jewels, lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock-absorber, self-compensating flat balance spring. Engraved on the back:"1940-1990".Dial, case and movement signed.Diam. 36 mm. Approx. overall length 180 mm.

Precision Timepieces with 3 Complications Collection of four Rolex Oyster Perpetual "Day-Date", Superlative Chronometer Officially Certified,Ref. 1803, 1970's. Production of this reference started in 1956.

Fine center-seconds, self-winding, water-resistant, 18K white gold gentleman's wristwatch with day and date, with an 18K white gold Rolex buckle.
C. three-body, solid, polished and brushed, screw-down case back and crown, ridged bezel, sapphire crystal with "Cyclops" lens. D. satiné silver with applied white gold indexes, apertures for the days of the week and the date. "Bâton" tritium-coated white gold hands. M. Cal. 1556, rhodium-plated, "fausses côtes" decoration, 26 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating Breguet balance spring.

Fine center-seconds, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch with day and date, with an 18K yellow gold Rolex buckle.
C.three-body, solid, polished and brushed, screw-down case back and crown, ridged bezel, sapphire crystal with "Cyclops" lens. D. satiné silver with applied white gold indexes, apertures for the days of the week and the date. "Bâton" tritium-coated white gold hands. M. same as above.

Fine center-seconds, self-winding, water-resistant, 18K pink gold gentleman's wristwatch with day and date, with an 18K pink gold Rolex buckle.
C.three-body, solid, polished and brushed, screw-down case back and crown, ridged bezel, sapphire crystal with "Cyclops" lens. D. matte silver with applied pink gold indexes and tritium dots, apertures for the days of the week and the date. "Bâton" tritium-coated pink gold hands. M. same as above.

Fine center-seconds, self-winding, water-resistant, platinum and diamond gentleman's wristwatch with day and date, with a steel Rolex buckle.
C.three-body, solid, polished and brushed, screw-down case back and crown, bezel set with large round diamonds, sapphire crystal with "Cyclops" lens.D. satiné blue with round and baguette diamond-set indexes, apertures for the days of the week and the date. "Bâton" faceted white gold hands. M. same as above.Dials, cases and movements signed.Diam. 35 mm each.

High Precision TimekeeperFeodosii Mikhailovich Fedchenko, model AchF-3, No. 25, made at the All-Union Scientific Research Institute of Physicotechnical and Radiotechnical Measure-ments, USSR, in 1970.Exceptionally fine and very rare astronomical, constant pressure, isochronous suspension, temperature compen-sation, short central impulsing, battery powered, master pendulum observatory regulator beating seconds, with simple change from mean solar time to sidereal time, considered to be the world's most accurate pendulum clock, with an average accuracy of approximately 0,002 seconds per day.

C. Cast-iron bracket supporting constant pressure steel cylinder with heavy bell glass jars at the top and bottom, fastened to a steel frame holding a steel bar with the dial on the right, small bracket at the back for the mercury oxide battery of capacity 2.5 amp hour providing power for over 3 years of continuous working, and electronic control unit. D. White with tapered indexes and fifteen-minute Arabic markers. Sharp point tapered hands. M. Consists of 10 kilogram invar pendulum with 2 secods period, its suspension, electro-magnetic impulse delivery device, pressure controlling baroscope, microscope for amplitude checking, battery power module and secondary clock system with its own battery, switching from mean time to sidereal time by moving a small weight in the pendulum.Signed on front at the suspension.Dim. Height 1,5 meter.

Timekeeper with9 ComplicationsGérald Genta, Genève, No. 2, Ref. 4043.4. Produced in the 1990's.Very fine and rare, minute-repeating, astronomic, self-winding, water-resistant, skeletonized, 18K yellow gold gentleman's wristwatch with one minute tourbillon regulator, perpetual calendar and moon phases with a Gérald Genta 18K yellow gold clasp.

C. two-body, shaped, transparent case back with 8 screws, stepped bezel.D. transparent with tritium-coated round indexes, auxiliary white ring dials for the days of the month, of the week, the months, aperture for the gold moon phases and for the leap year on a lapis lazuli background. "Epée" tritium-coated yellow gold hands hands. M. Cal. 11''', engraved gilt brass, escapement with tourbillon regulator, monometallic balance, self-compensating flat balance spring and engraved gold skeletonized rotor bearing the initials "GG", repeating on gongs by means of a pushern the band.Dial, case and movement signed.Dim. 35 mm.

Timekeeper with 8 ComplicationsGérald Genta, Genève, No. 418, Ref. 3019.4. Produced in the 1990's.Fine octagonal, minute-repeating, astronomic, self-winding, water-resistant, skeletonized, 18K yellow gold gentleman's wristwatch with perpetual calendar and moon phases with a Gérald Genta 18K yellow gold link bracelet and clasp.

C. two-body, shaped, transparent case back with 8 screws, stepped bezel with8 overhanging segments. D. transparent, tritium-coated round indexes, auxiliary mother-of-pearl ring dials for the date, days of the week, and months in red Arabic numerals and writing, aperture for the gold moon phases on a lapis-lazuli background, and for the leap year in red. "Bâton" tritium-coated yellow gold hands. M. Cal. 11''', engraved gilt brass, straight line lever escapement, monometallic balance, shock-absober, self-compensating flat balance spring and engraved skeletonized gold rotobearing the initials "GG", repeating on gongs by means of a pusher on the band.Dial, case and movement signed.Dim. 35 mm.Approx. overall length 190 mm.

Timekeeper with 6 ComplicationsInternational Watch Co., Schaffhausen "Novecento Automatic Perpetual", No. 992. Produced in the 1990's.Fine, astronomic, rectangular, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch with perpetual calendar and moon phases, 40 hours autonomy, with an 18K yellow gold IWC bracelet "à grosses mailles" and deployant clasp.

C. two-body, solid, polished, stepped sides, sapphire crystal. D. white with applied gold indexes, auxiliary dials for the days of the month, of the week and the months, apertures for the moon phases and the year display with 2 digits. "Feuille" yellow gold hands. M. Cal. 32062, gilt brass, 36 jewels, lever escapement, Glucidur balance, Nivarox balance spring.Dial, case and movement signed.Dim. 26 x 41 mm.

Timekeeper with 10 ComplicationsInternational Watch Co., Schaffhausen, "Da Vinci", No. 412. Produced in the 1990's.Very fine astronomic, self-winding, water-resistant down to 30 meters, 18K white gold gentleman's wristwatch with round button chronograph, registers, perpetual calendar and moon phases, with an 18K white gold IWC buckle.

C. two-body, solid, polished, stepped bezel, hooded mobile lugs, sapphire crystal. D. white with applied white gold and tritium indexes, auxiliary dials for the seconds, the 12 hours and 30 minutes registers, the days of the month, of the week, aperture for the moon phases and for the year display with four digits until 2499. "Bâton" tritium-coated white gold hands. M. 13''' gilt brass, 36 jewels, lever escapement, glucidur balance, Nivarox balance spring.Dial, case and movement signed.Diam. 39 mm.

Precision Timekeeper with 7 ComplicationsRoger Dubuis, Genève, "Bi-retrograde Calen-dar", No. 33. Produced circa 2000.Very fine, astronomic, 18K pink gold "Bulletin d'Observatoire" gentleman's wristwatch with bi-retrograde calendar, perpetual and lunar calendar, moon phases and age, round button chronograph, register and an 18K pink gold Roger Dubuis deployant clasp.

C. three-body, solid, polished and brushed, transparent screwed-down case back, back crystal with volutes, concave bezel and lugs. D. black with applied pink gold dot indexes, auxiliary seconds and 30 minutes register dials, on the 12 off-center dial for the months and the leap years, on each side, sectors for the retrograde days of the week and of the month, graduation for the age of the moon, aperture for the moon phases. "Alpha" and "Feuille-skeleton" pink gold hands. M. Cal. RD 5637, stampedwith the Geneva Quality Hallmark, rhodium-plated, 21 jewels, straight line lever escapement, monometallic balance, 5 adjustments, shock-absorber, self-compensating Breguet balance spring, micrometer regulator.Dial, case and movement signed.Diam. 37 mm.

Precision Timekeeper with 2 ComplicationsOmega "DeVille Co-Axial", Chronometer Automatic,No. 442/999. Limited edition producedin 1999.Fine, center-seconds, self-winding, water-resistant, 18K white gold gentleman's wristwatch with date and 44 hours autonomy and an 18K white gold deployant clasp.

C. two-body, solid, polished, screw-down case back engraved with logo, stepped bezel, fluted and concave lugs, sapphire crystal. D. two-tone silver with 12 facets with applied white gold Roman numerals and fancy tritium-coated indexes, aperture for the date. "Feuille" tritium-coated white gold hands. M. Cal. 2500, rhodium-plated, "fausses côtes" decoration, 23 jewels, coaxial escapement, circular graining, monometallic balance, shock-absorber, self-compensating flat balance spring.Dial, case and movement signed.Diam. 37 mm.

Lot of 10 books.All in German, mostly on watchmaking, comprising: Uhrmacher Kalender for 1925, Uhren by Bassermann-Jordan, 1920, Leitfaden für Uhrmacher-Lehrlinge by H. Sievert, 1906, Kunstuhrmacher in Alt-Augsburg by M. Bobinger, 1969, Feinstellung der Uhren by Giebel/Helwig, 1952, Lehrbuch für das Uhrmacherhandwerk two volumes, Leitfaden für die Uhrmacherlehre by H. Sievert, 1914, Die Lehre an der Deutschen Uhrmacherschule, vol. II, by Hesse/Helwig, 1929, Zeitzeichen Das Buch mit dem Tick, Chronoswiss.

C. All in good condition, some with dedications.

"Horlogerie" section of the Encyclopedie by Diderot and d'Alembert.All original plates and text, later cloth-bound cover.

The Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, par une Société de Gens de lettres was published under the direction of Diderot, with 17 volumes of text and 11 volumes of plates between 1751 and 1772. It contains 72,000 articles written by more than 140 contributors. The Encyclopédie was a major reference work for the arts and sciences, as well as a catalyst which served to propagate French ideas. Its impact was enormous. Through its attempt to classify learningand to open all domains of human activity to its readers, the Encyclopédie gave expression to many of the most important intellectual and social developments of the time. Good condition.

Catalogue of the Collection of Watches, property of J. Pierpont Morgan, compiled at his request by G. C. Williamson.

Real vellum edition.John Pierpont MORGAN, financier, born in 1837. Entered the Duncan, Sherman & Co. bank in 1857; became U.S. agent and attorney in 1860 for George Peabody & Co., bankers, London. Member of Dabney, Morgan & Co., investment securities in 1864-1871; member in 1871 of the firm of Drexel, Morgan & Co., which became J.P. Morgan & Co., the leading U.S private bankers; also J.S. Morgan & Co., London, and is today J.P. Morgan Chase. Largely occupied as financier in largest reorganizations of railways and cnsolidation of industrial properties, he made large donations to many different institutions including the American Museum of Natural History, the Metropolitan Museum Art and the New York Public Library. A famous collector of pictures, books, manuscripts, curiosities etc. President of Metropolitan Museum of Art. Died in 1913. He commissioned art historian G. C. Williamson to compile at least two catalogues for him, including this one of his watch collection. Good condition, slight wear.

Lot of three boxes with watch parts.

C. One with balances, balance weights, a few balance springs, two more boxes with parts for Ulysse Nardin marine chronometers, including plates, detent, train, balances, screws, jewels, etc., an almost complete kit for building a marine chronometer, comes with parts sheet.

Lot of six boxes with parts and movements.

C. Comprising one box with parts for 17''' Ulysse Nardin movements, another box with six unfinished Ulysse Nardin ebauches for independent seconds watches, box with partially finished Ulysse Nardin 17''' keyless movement with parts, box with partially finished 20''' Ulysse Nardin lever movements with some parts, Ulysse Nardin technical drawing of vertical layout of one of their calibers and a box with four Jurgensen movements, all keyless levers with some additional parts and a leather covered bx from F.G. Huguenin, nickeler with samples of his gilding and damascening work.