Mercier & Fils, Genève, No. 6540, circa 1880. Fine and rare 18 ct. gold, haif hunting cased, keyless moon phase astronomical watch with a fly back perpetual calendar.

C. Four body, massive, "bassine et filets", polished with black champleve enamelled Roman numerals on the border of the dial aperture, the back with the applied gold monogram "E.C.". Gold cuvette. D. White enamel with Roman numerals, subsidiary seconds and symmetrical month small chapter ring, apertures for the moon phase volvelle and the days of the week, sector for the fly-back calendar. Gold " spade" hands. M. 18-, gilt brass, 18 jewels, counterpoised straight line lever escapement, cut bimetallic balance, Breguet balance spring. Signed on the dial and cuvette. In very good condition. Diam. 51 mm.

Not signed, Swiss, No. 45024, made for the Turkish market, bearing the London hallmarks for 1895. Fine 18 ct. gold hunting cased pocket chronometer.

C. Four body, massive, "bassine et filets", engineturned. Gold cuvette engine-turned on the border. D. White enamel with Turkish numerals and subsidiary seconds. Gold paste-set hands. M. 20-, gilt brass, bar calibre similar to those used by Frederic Favre-Bulle for his chronometers with tourbillon regulator, 15 jewels part in gold screwed settings, fusee with maintaining power, pivoted detent escapement, cut bimetallic balance, blued steel spherical balance spring. In very good condition. Diam. 52 mm.

Rolex, circa 1910. Fine silver gentleman's wristwatch.

C. massive, polished, hinged back. D. black with painted white Arabic numerals + auxiliary seconds dial. " Skeleton" radiumed hands. M. 12 1/2-rhodiumed, "fausses côtes" decoration, 15 jewels, lever escapement, monometallic balance, flat balance-spring. Dial, case and movement signed. Condition: Diam. 34 mm.

Rolex, Ref. 670, circa 1910. Fine early, half-hunting, 14ct gold lady's wristwatch with 10ct gold filled bracelet.

C. massive, polished, hinged back and bezel bearing the Arabic numerals, mobile lugs. D. mat silver with applied gold Arabic numerals. "Spade" blued steel hands. M. 10- rhodiumed, "oeil-de-perdrix" decoration, 15 jewels, lever escapement, cut bimetallic balance, flat balance-spring. Dial, case and movement signed. In good condition. Diam. 28 mm.

Rolex Oyster Perpetual Chronometer, Ref. 3869, 1950's. Fine self-winding, stainless steel lady's wristwatch with stainless steel Oyster bracelet.

C. polished, screwed back and crown, waterproof. D. pink with painted Arabic numerals and indexes + auxiliary seconds dial. "Bâton" blued steel hands. M. 7 3/4- rhodiumed, 17 jewels, lever escapement, Superbalance balance, self-compensating Breguet balancespring. Dial, case and movement signed. In good condition. Diam. 23 mm.

Rolex, circa 1910. Early, burnished steel gentleman's wristwatch.

C. hinged back, wire lugs. D. white enamel with radiumed Arabic numerals + auxiliary seconds dial. " Skeleton" radiumed hands. M. 12 1/2- rhodiumed, "oeil-de-perdrix" decoration, 15 jewels, lever escapement, monometallic balance, selfcompensating flat balance-spring. Dial, case and movement signed. In good condition. Diam. 33 mm.

Rolex Chronomètre "Metropolitan", Ref. 4325, 1950's. Fine flat, 14ct gold gentleman's wristwatch.

C. massive, polished, graduated bezel. D. black with applied gold indexes + auxiliary seconds dial. " Dauphine" gold hands. M. 10"' rhodiumed, 17 jewels, lever escapement, Superbalance balance adjusted to 7 positions, antishock system, selfcompensating Breguet balance-spring. Dial, case and movement signed. In very good condition. Diam. 35 mm.

Rolex "Antimagnétique", Ref. 2508, 1940's. Very fine 18ct pink gold gentleman's wristwatch with square button chronograph, register, tachometer and telemeter.

C. massive, polished, satined, lapidated lugs. D. mat silver with painted Roman numerals and indexes + auxiliary seconds and 30 minutes register dials, outer tachometer and telemeter graduations. "Bâton" blued steel hands. M. 14 1/2"' rhodiumed, 17 jewels, lever escapement, monometallic balance, selfcompensating Breguet balance-spring. Dial, case and movement signed. In very good condition. Diam. 36 mm.

Rolex Chronograph, Ref. 4062, 1940's. Fine 18ct pink gold gentleman's wristwatch with square button chronograph, register and tachometer.

C. massive, polished, reeded band and lugs. D. mat silver with painted Arabic numerals + auxiliary seconds and 30 minutes register dials, outer tachometer graduation. "Bâton" blued steel hands. M. 13"' rhodiumed, 17 jewels, lever escapement, monometallic balance, self-compensating Breguet balance-spring. Dial, case and movement signed. In very good condition. Diam. 36 mm.

Rolex "Précision", Ref. 9659, 1960's. Fine 18ct gold center second, gentleman's wristwatch.

C. massive, polished. D. champagne with applied gold indexes. "Bâton" gold hands. M. 10 1/2"' rhodiumed, 17 jewels, lever escapement, monometallic balance, antishock system, selfcompensating Breguet balance-spring. Dial, case and movement signed. In very good condition. Diam. 34 mm.

Rolex Oyster Perpetual, Officially Certified Chronometer, Ref. 3372, 1940's. Very fine and rare, tonneau shaped, centre second, self-winding, 18ct pink gold gentleman's wristwatch, with 18 et pink gold Oyster bracelet.

C. massive, polished, satined, screwed back and crown, waterproof, graduated bezel. D.black with applied gold indexes and Arabic numerals. "Bâton" gold hands. M. 9 3/4- rhodiumed, 19 jewels, lever escapement, monometallic balance adjusted to 6 positions, self-compensating Breguet balancespring. Dial, case and movement signed. In very good condition. Diam. 32 mm.

Rolex Oyster Perpetual, Officially Certified Chronometer, Ref. 3372, specially made for the Oriental market, 1940's. Very fine and rare, tonneau shaped, centre second, self-winding, 18ct pink gold gentleman's wristwatch.

C. massive, polished, satined, screwed back and crown, waterproof, graduated bezel. D. purple enamel with applied gold indexes. "Bâton" gold hands. M. 9 3/4- rhodiumed, 19 jewels, lever escapement, monometallic balance adjusted to 6 positions, self-compensating Breguet balancespring. Dial, case and movement signed. In very good condition. Diam. 32 mm.

Rolex Oyster Perpetual, Officially Certified Chronometer, Ref. 3130, 1940's. Fine tonneau shaped, self-winding, 18ct gold gentleman's wristwatch with 18ct gold bracelet.

C.massive, polished, screwed back and crown, waterproof. D.mat silver with applied gold indexes and Arabic numerals + auxiliary seconds dial."Alpha" gold hands. M. 9 3/4- rhodiumed, 19 jewels, lever escapement, monometallic balance adjusted to 6 positions, self-compensating Breguet balancespring. Dial, case and movement signed. In very good condition. Diam. 32 mm.

Rolex Oyster Perpetual, Ref. 3130, 1940's. Fine tonneau shaped, self-winding, 18ct gold gentleman's wristwatch.

C. massive, polished, satined, screwed back and crown, waterproof. D. mat silver with applied gold indexes + auxiliary seconds dial."Alpha" radiumed gold hands. M. 9 3/4- rhodiumed, 19 jewels, lever escapement, monometallic balance adjusted to 6 positions, self-compensating Breguet balancespring. Dial, case and movement signed. In very good condition. Diam. 32 mm.

Rolex Oyster Perpetual, Ref. 3130, 1940's. Fine tonneau shaped, self-winding, 18ct gold gentleman's wristwatch.

C. massive, polished, satined, screwed back and crown, waterproof. D.champagne with radiumed Arabic numerals + auxiliary seconds dial."Skeleton" radiumed hands. M. 9 3/4- rhodiumed, 19 jewels, lever escapement, monometallic balance adjusted to 6 positions, self-compensating Breguet balancespring. Dial, case and movement signed. In very good condition. Diam. 32 mm.

Rolex Oyster Perpetual Chronometer, Ref. 3131, produced in 500 examples between 1939 and 1946. Fine and rare, tonneau shaped, centre second, self-winding, 18ct pink gold gentleman's wristwatch.

C. massive, polished, satined, screwed back and crown, waterproof, graduated bezel. D. black with radiumed Arabic and Roman numerals. "Skeleton" radiumed hands. M. 9 3/4"' rhodiumed, 19 jewels, lever escapement, monometallic balance adjusted to 6 positions, self-compensating Breguet balancespring. Dial, case and movement signed. Condition: Diam. 32 mm.

Rolex "Prince Savonnette", Ref. 1872-1599, Patent No 334491, 4 September 1930. Extremely fine and rare, rectangular, 9 et gold and stainless steel, hunting-cased gentleman's wristwatch with fitted box and certificate.

C. hinged "guilloché" outer gold case, wire lugs. Stainless steel inner case, polished, anti-dust protecting cap. D. two-tone silver with painted Arabic numerals + auxiliary seconds dial. "Spade" blued steel hands. M. 7"' Ultra Prima, rhodiumed, 18 jewels, lateral lever escapement, monometallic balance adjusted to 6 positions, self-compensating Elinvar Breguet balance-spring. Dial, case and movement signed. Condition: ' Dim. 24 x 40 mm.

Rolex "Chronographe Anti-Magnétique", Ref. 3055, circa 1938, considered at the time as the smallest chronograph in the world. Very fine and rare small, 18ct pink gold gentleman's wristwatch with square button chronograph, register and tachometer.

C. massive, polished, concave bezel. D. mat silver with applied gold indexes + auxiliary seconds and 30 minutes register dials, outer tachometer graduation. "Alpha" pink gold hands. M. 10 1/2-rhodiumed, 17 jewels, lever escapement, monometallic balance, self-compensating Breguet balance-spring. Dial, case and movement signed. Condition: Diam. 30 mm.

Rolex "Prince Classic", Ref. 1541, 1930's. Very fine and rare rectangular curved, 18ct gold gentleman's wristwatch with 18 et gold integrated bracelet, and fitted box.

C. massive, polished, satined, lapidated bezel. D. two-tone silver with painted Arabic numerals + auxiliary seconds dial. "Bâton" blued steel hands. M. 7"' Extra Prima, rhodiumed, 15 jewels, lateral lever escapement, monometallic balance adjusted to 6 positions, self-compensating Breguet balancespring. Dial, case and movement signed. In excellent condition. Dim. 21 x 40 mm.

Rolex "Prince Railway", Ref. 1527, 1930's. Very fine rectangular, 18ct gold gentleman's wristwatch with fitted box.

C. massive, polished, stepped sides. D. mat silver with painted Arabic numerals + auxiliary seconds dial. " Spade" blued steel hands. M. 7"' Extra Prima Observatory quality, rhodiumed, 15 jewels, lateral lever escapement, monometallic balance adjusted to 6 positions, self-compensating Breguet balancespring. Dial, case and movement signed. In very good condition. Dim. 23 x 42 mm.