Rolex "Precision" for Serpico y Laino Caracas, Ref. 406. Fine, 18 ct pink gold lady's wristwatch with concealed dial and articulated fluted pink gold bracelet.

C. massive, polished with pierced dial cover. D. "guilloché" silver with applied gold indexes, "Bâton" gold hands, M. 6", rhodiumed, 17 jewels, lever escapement, " Superbalance" balance, flat balance-spring. Dial, case and movement signed. In very good condition. Diam. 19 mm.

Patek Philippe & Cie, Genève, No. 707348, case No. 2604335, Ref. 2508, circa 1960. Fine, center second, 18 ct gold gentleman's wristwatch.

C. massive, polished, satined, waterproof, anti-magnetic protecting cap. D. mat silver with applied gold indexes, " Dauphine" gold hands. M. 27 SC, rhodiumed, "faussescôtes" decoration, 18 jewels, lever escapement, monometallic balance adjusted to heat, cold, isochronism and 5 positions, antishock system, self-compensating Breguet balance-spring, micrometer regulator. Dial, case and movement signed. In good condition. Diam. 34 mm.

Patek Philippe & Cie, Genève, " Calatrava", No. 827132, case No. 294546, circa 1935. Very fine and rare, indirect center second system, 18 ct gold gentleman's wristwatch.

C. massive, polished. D. mat silver with applied gold indexes and Arabic numerals, "Dauphine" gold hands. M. 12"'-120, rhodiumed, "fausses-côtes" decoration, 20 jewels, lever escapement, cut bimetallic balance, selfcompensating flat balance-spring. Dial, case and movement signed. In good condition. Diam. 30 mm.

Patek Philippe & Cie, Genève, for "Ecole d'Horlogerie, Genève, case No. 57114, Ref. 2509, 1950's. Expressely made for the pupils of the school. Interesting, plated aluminum gentleman's wristwatch.

C. polished, waterproof, anti-magnetic protecting cap, screwed back. D. mat silver with applied gold indexes + auxiliary seconds dial, "Bâton" gold hands. M. 12"'-120, Geneva Quality Hall Mark, rhodiumed, "fausses-côtes" decoration, 18 jewels, lever escapement, monometallic balance, antishock system, self-compensating Breguet balance-spring, micrometer regulator. In good condition. Diam. 35 mm.

Patek Philippe & Cie, Genève, "Calatrava", No. 708429, case No. 310369, Ref. 2555, circa 1960. Very fine, center second, 18 ct gold gentleman's wristwatch.

C. massive, polished, screwed back. D. mat silver with applied gold indexes, "Bâton" gold hands. M. 27 SC, Geneva Quality Hall Mark, rhodiumed, "fausses-côtes" decoration, 18 jewels, lever escapement, monometallic balance adjusted to heat, cold, isochronism and 5 positions, antishock system, self-compensating flat balance-spring, micrometer regulator. Dial, case and movement signed. In excellent condition. Diam. 32 mm.

Vacheron & Constantin, Genève, No. 466530, case No. 303393, 1940's. Very fine and rare, 18 ct gold gentleman's wristwatch with square button chronograph, register and tachometer.

C. massive, polished, stepped sides, teardrop lugs. D. mat silver with applied gold indexes and Roman numerals + auxiliary seconds and 30 minutes register dials, outer tachometer graduation, "Bâton" gold hands. M. 13", rhodiumed, 19 jewels, lever escapement, monometallic balance, self-compensating Breguet balance-spring. Dial, case and movement signed. In very good condition. Diam. 36 mm.

Audemars Piguet, Genève, No. 49677, Ref. 1864, 1940's. Very fine and rare, 18 et gold gentleman's wristwatch with square button chronograph, registers and tachometer.

C. massive, polished, teardrop lugs. D. mat silver with applied gold indexes + auxiliary dials for the seconds, the 12 hours and 30 minutes registers, outer tachometer graduation, " Bâton" gold hands. M. 13"', rhodiumed, 21 jewels, lever escapement, monometallic balance adjusted to 8 positions, self-compensating Breguet balance-spring. Dial, case and movement signed. In very good condition. Diam. 35 mm.

Vacheron & Constantin, Genève, No. 466885, case No. 340367, 1940's. Very fine and rare, 18 et pink gold gentleman's wristwatch with square button chronograph and register.

C. massive, polished, teardrop lugs. D. mat silver with applied gold indexes and Roman numerals + auxiliary seconds and 30 minutes register dials, "Bâton" gold hands. M. 13"', rhodiumed, 19 jewels, lever escapement, monometallic balance adjusted to temperatures, selfcompensating Breguet balance-spring. Dial, case and movement signed. In excellent condition. Diam. 35 mm.

Patek Philippe & Cie, Genève. No. 867192, case No. 646713, Ref. 1436, circa 1948. Extremely fine and rare, small, 18 ct pink gold, gentleman's wristwatch, with square button split-second chronograph, register and tachometer.

C. massive, polished, satined. D. mat silver, with applied gold Breguet numerals + auxiliary seconds and 30 minutes register dials, outer tachometer graduation, "Feuille" gold hands. M. rhodiumed, 23 jewels, lever escapement, cut bimetallic balance, adjusted to 8 positions, Breguet balance spring, micrometer regulator, Dial, case and movement signed. In very good condition. Diam. 33 mm.

A. Lange & Sôhne, Glashütte B/Dresden, No 48639, circa 1904. Fine and rare silver case keyless pocket chronometer used for the Nanga-Parbat-Expedition to the Himalaya in 1939, in original fitted case.

Four body massive "Jtirgen" case with engine turned back. Silver cuvette. Mat silver dial with engraved Roman numerals and subsidiary seconds. Blued steel "pear" hands. Fine frosted gilt brass 21"' three quarter plate movement, 21 jewels, pivoted detent escapement, brass escape wheel, brass-invar Guillaume balance, free sprung blued steel helical balance spring with terminal curves. Signed on the dial, the case and the movement. In very good condition. Diam. 62 mm. This watch was used as a navigation chronometer by the Nanga-Parbat Expedition to the Himalaya in 1939. Their return to India coincided with the outbreak of war and the entire party was interned. Upon their release this watch was sold to a Swiss gentleman living in India in order to pay for their retum to Europe. Very few chronometers with detent escapement were produced by Lange. A similar example is illustrated and described in Kurt Herkner: Glashütte und seine Uhren, page 152, where the unusual detent with off-set passing spring is also shown.

A. Lange & Sôhne, Glashütte B/Dresden, No 45419, circa 1903, D.R.G.M. 121267. Rare and fine 18 ct. pink gold hunting cased keyless pocket chronometer with a 60 minute Karrusel regulator.

Four body massive "Lucia" engine turned case the cover engraved with the monogram: "G.N.". Gold cuvette engraved with a dedication dated May 12, 1914. White enamel three piece dial with Arabic numerals and subsidiary seconds. Gold Louis XV hands. Very fine giIt brass 19"' three quarter plate movement, l a quality; 14 jewels, lateral gold lever escapement, cut bimetallic balance with poising screws and diamond endstone, Breguet balance spring with a swan neck micrometric index. The escapement is set on a 60 minute revolution carriage driven by the center wheel. Signed the dial, the case and the movement. In very good condition. Diam. 60 mm.

A. Lange & Sôhne, Glashütte B/Dresden, No 40266, circa 1900. Extremely fine and rare 18 ct. pink gold minute repeating, moon phase astronomical keyless watch with perpetual calendar and single button double chronograph.

Four body massive "Louis XV" polished case. Gold cuvette. Six piece white enamel dial with Arabic numerals, red Arabic outer minute and chronograph rings, subsidiary dials for the days of the week, the months of the leap year cycle, the date and the subsidiary seconds with inner moon phase aperture. Gold Louis XV hands. Very fine nickel plated 19"' three quarter plate movement with diamond spotted decoration, 32 jewels in gold screwed settings, gold straight line lever escapement, cut bimetallic balance, Breguet balance spring with a swan neck micrometric index. Repeating on gongs by means of a slide on the band. The split second chronograph with a visible work, the push piece on the band. Signed on the dial, the case, numbered on the movement. In excellent condition. Diam. 60 mm. The split second chronograph is operated by a single button, performing the functions: start/split/stop/reset. Illustrated and described in Martin Huber: Die Uhren von A. Lange & Sôhne, Glashütte/Sachsen pages 68-69.

Wildmar Fieck & Alfred Helwig, Glashütte Sachsen, No 24, masterpiece made in 1931. Extremely rare and fine silver cased pocket chronometer with up/down scale and one minute flying "toubillon" regulator, in original fitted case.

Four body massive "Louis XV" polished case. Mat silver dial with blued steel high relief indexes, counter sunk subsidiary seconds and up/down sector. Blued steel "modernes" hands. Fine glazed rhodium plated three quarter plate movement, "fausses côtes" decoration, 15 jewels, double barrel with a differential winding train mounted on the back plate and "planetary" stop work with rack and pinion up/down off the differential gear. Spring detent escapement with a steel escape wheel, the jewels set in pressed gold settings. Very delicate three armed polished steel "flying" tourbillon carriage, driven by the third wheel. Signed on the back plate. In excellent condition. Diam. 59 mm. The flying tourbillons, made following the principals of Professor Alfred Helwig, represent the ultimate achievement in the making of revolving escapements. The few exanples made at the Lange school can certainly be counted amongst the masterpieces of German horology. Similar watches are described and illustrated in Kurt Herkner: Glashütte und seine Uhren, pages 378 to 399 and in Martin Huber: De Uhren von A. Lange & Sôhne, Glashütte Sachsen page 53.

Patek Philippe & Cie, Genève, No. 863247, case No. 634687, made in 1943 and sold in 1946. Extremely fine, rare and interesting, tonneau-shaped, astronomic, 18 ct gold gentleman's wristwatch, with square button chronograph, register and tachometer, perpetual calendar and moon phases.

C. massive, polished. D. mat silver with applied gold Arabic numerals + auxiliary seconds and 30 minutes register dials, outer tachometer graduation, graduation for the days of the month, apertures for the days of the week, the months and the lunations, "Feuille" gold hands. M. 13', rhodiumed, " fausses-côtes" decoration, 23 jewels, lever escapement, cut bimetallic balance adjusted to 8 positions, Breguet balancespring, micrometer regulator. Dial, case and movement signed. In excellent condition. Diam. 37 mm.

Audemars Piguet, No 5287. Made to the order of and sold by Vacheron & Constantin, Genève, in 1903. Very fine 18 ct. gold hunting cased minute repeating moon phase astronomical keyless watch with perpetual calendar, split second chronograph and 30 minute progressive recorder.

Four body massive "demi-bassine" polished case with inset hinges. Gold cuvette with a dedication dated 1904. White enamel dial with Arabic numerals, outer red Arabic minute and chronograph rings, subsidiary dials for the days of the week, the months with inner leap year cycle and outer minute register, the dates and the seconds with inner moon phase aperture. Gold "spade" hands. Very fine nickel plated 17"' movement, "fausses côtes" decoration, 33 jewels, equilibrated straight line lever escapement, cut bimetallic balance, Breguet balance spring with a swan neck micrometric index. Repeating on gongs by means of a slide on the hand. The split second chronograph with a visible work, the push pieces on the band. Signed on the cuvette Vacheron & Constantin, Genève, Chronomètre. In very good condition. Diam. 51 mm.

Patek Philippe & Cie, Genève, No. 862574, case No. 623288, Ref. 96, circa 1943. Extremely fine, rare and unusual, 18 ct white gold gentleman's wristwatch with square button chronograph, register and tachometer.

C. massive, polished, satined. D. two-tone silver with applied gold Breguet numerals + auxiliary seconds and 30 minutes register dials, outer tachometer graduation, " Feuille" gold hands. M. 13', rhodiumed, "fausses-côtes" decoration, 23 jewels, lever escapement, monometallic balance adjusted to 8 positions, self-compensating Breguet balance-spring, micrometer regulator. Dial, case and movement signed. In very good condition. Diam. 33 mm.

Unsigned, Swiss, the tourbillon by Ernest Guinand, made for the Spanish market, circa 1880. Very fine 18 ct. gold hunting cased, keyless pocket chronometer with a one minute "tourbillon" regulator.

Four body massive "demi-bassine et filets" polished case, gold cuvette. Engine turned gold dial with Roman numerals and applied three coloured gilt floral decoration. Blued steel Breguet hands. Very fine nickel plated 19"' movement, " fausses côtes" decoration, the bridge in the form of conjoined initiais, 12 jewels on the carriage, pivoted detent escapement, gold escape wheel, cut bimetallic balance, blued steel balance spring with a terminal curve. The three armed polished steel carriage of Guinand 2nd. pattern, is driven by the third wheel. In very good condition. Diam. 53 mm. Guinand, produced three models of Tourbillon carriage, and cluring his lifetime worked for several important makers including Girard Perregaux and Montandon.

Patek Philippe & Cie, Genève, No. 863675, case No. 638785, Ref. 1518, circa 1945. Produced in 281 examples between 1941 and 1954. Extremely fine and rare, astronomic, 18 ct gold gentleman's wristwatch with square button chronograph, register, tachometer, perpetual calendar and moon phases, and with an 18 ct gold Patek Philippe bracelet.

C. massive, polished. D. mat silver with applied gold Arabic numerals + auxiliary seconds and 30 minutes register dials, outer tachometer graduation, graduation for the days of the month, apertures for the days of the week, the months and the lunations, "Feuille" gold hands. M. 13-, rhodiumed, " fausses-côtes" decoration, 23 jewels, lever escapement, cut bimetallic balance adjusted to 8 positions, Breguet balancespring, micrometer regulator. Dial, case and movement signed. In excellent condition. Diam. 35 mm.

Patek Philippe & Cie, Genève, No. 863885, case No. 646771, Ref. 130, circa 1946. Extremely fine and rare 18 et gold gentleman's wristwatch with square button chronograph, register and tachometer, with fitted box and 14 ct gold Tiffany bracelet.

C. massive, polished. D. mat silver with applied gold Breguet numerals + auxiliary seconds and 30 minutes register dials, outer tachometer graduation, "Spade" gold hands. M. 13-, rhodiumed, "fausses-côtes" decoration, 23 jewels, lever escapement, monometallic balance adjusted to 8 positions, self-compensating Breguet balance-spring, micrometer regulator. Dial, case and movement signed. In very good condition. Diam. 33 mm.

Patek Philippe & Cie, Genève, No. 962773, case No. 655691, Ref. 1415, circa 1948. Extremely fine and rare, "World Time", 18 ct gold gentleman's wristwatch, with 18 et gold Patek Philippe bracelet.

C. massive, polished, revolving bezel bearing the name of 41 towns in the world, teardrop lugs. D. mat silver with applied gold indexes and Roman numerals, concentric, revolving dial in 24 hours for the diurnal and nocturnal hours, hand engraved bezel, fancy gold hands. M. 12' HU, rhodiumed, "fausses-côtes" decoration, 18 jewels, lever escapement, monometallic balance adjusted to heat, cold, isochronism and 5 positions, self-compensating Breguet balance-spring, micrometer regulator. Dial, case and movement signed. In very good condition. Diam. 31 mm.