Vacheron & Constantin à Genève, No. 183645,complected in 1897, delivered on November 27, 1897 to the Thai Royal Family.Very fine and rare gilt brass and enamel, keyless minute repeating watch of Royal provenance.

C. Four body, massive, "bassine", polished, the back centred with a black and red champlevé monogram of the Thai Royal Family framed within an engine-turned decoration in a sunburst pattern. Hinged gold cuvette. D. White enamel with Roman numerals, outer minutes ring and sunk subsidiary seconds. Blued-steel "spade" hands. M. 19''', nickel plated, "striped" decoration, 31 jewels, counterpoised straightline lever escapement, cut bimetallic balance, Breguet balance spring with swan-neck micrometric index. Repeating on gongs with slide in the band.Signed on the dial and movement.Accompanied by Vacheron Constantin Certificate.Diam. 54 mm.

Vacheron & Constantin, Genève, No. 189920,circa 1900.Very fine and rare 18K pink gold, hunting cased, moon phase, astronomical, keyless minute repeating watch with perpetual calendar and chronograph.

C. Four body, massive, "bassine et filets", polished, the cover with an engraved monogram. Hinged gold cuvette. D. White enamel with Roman numerals, outer Arabic minute and chronograph rings, subsidiary dials for the days of the week, the months of the leap year cycle, the dates and the seconds with inner moon phase aperture. Blued steel "spade" hands. M. 19''', rhodium plated, "fausses côtes" decoration, 32 jewels, counterpoised straight line lever escapement, cut bimetallic balance, Breguet baance spring with micrometric index. Repeating on gongs with slide in the band. Chronograph with visible work, and push-piece in the band.Signed on the case and movement.Diam. 58 mm.

Vacheron & Constantin, Genève, No. 317228case No. 192696, circa 1908.Very fine 18K gold and enamel keyless dress watch in original fitted box.

C. Three body, massive, "demi-bassine", the band with blue and black champlevé enamelled decoration, the bezel and back decorated with azure champlevé enamelled flowers and engraved scrolling foliage over a black ground. Hinged gold cuvette engraved with a dedication dated 1921. D. Frosted engine-turned gold with Roman numerals and sunk subsidiary seconds. Blued steel "spade" hands. M. 16''', gilt brass,15 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance spring with swan neck micrometric index.Signed on the dial, case and movement.Diam. 47 mm.

Vacheron & Constantin, Genève, No. 331676,case No. 199489, made for C. H. Grottendieck à Bruxelles, circa 1904.Very fine 18K gold and enamel, keyless fob watch.

C. Four-body, "bassine et filets", the bezels chased with foliage, the back enamelled with painted champlevé enamelled crowned coat of arms of the family of a Count with the motto "A l'honneur". Hinged gold cuvette. D. Frosted gold with Arabic numerals, the centre engraved with foliage. Blued steel "Louis XV" hands. M. 11''', gilt brass, 15 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance spring.Signed on the case and movement.Diam. 30 mm.

Vacheron & Constantin, Genève, No. 322628,case No. 194150, circa 1902.Very fine 18K two-coloured gold, diamond set Art Nouveau keyless fob watch.

C. Four body, massive, "bassine", bezel and back chased with yellow gold flower with rose-cut diamond set foliage, over a matted pink gold ground. Hinged gold cuvette. D. White enamel with Arabic numerals. Gold "Louis XV" hands. M. 10''' 1/2, gilt brass,15 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance spring.Signed on the dial, cuvette and movement.Diam. 31 mm.

Vacheron & Constantin, Genève, No. 343593,case No. 201040, circa 1908.Very fine 18K gold and enamel keyless dress watch.

C. Three body, massive, "demi-bassine", the bezel band with a black champlevé enamelled decoration, the back enamelled with grey thistles painted over a black ground. Hinged gold cuvette. D. Frosted engine-turned silver with Arabic numerals and sunk subsidiary seconds. Blued steel Breguet hands.M. 17''', rhodium plated, 19 jewels, straight line lever escapement, adjusted cut bimetallic balance, Breguet balance spring.Signed on the dial, case and movement.Diam. 57 mm.

Vacheron & Constantin, Genève, No. 369581,case No. 225844, circa 1915.Very fine 18K gold and enamel, diamond-set keyless pendant watch.

C. Three body, entirely decorated with a powder blue flinqué enamel, the back with painted white enamelled flowers on the border and applied with a rose-cut diamond set basket of flowers. The pendant designed as a ribbon and set with rose-cut diamonds. Hinged gold cuvette engraved with the name of the owner. D. Frosted engine-turned silver with Arabic numerals. Gold Breguet hands. M. 9''', rhodium plated, 16 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance spring.Signed on the dial, case and movement.Diam. 27 mm.

Vacheron & Constantin, Genève, Chronomètre Royal, No. 362968, case No. 224390, circa 1908.Fine 18K gold keyless watch.

C. Three body, massive, "demi-bassine", the back engine-turned in a sunburst pattern and engraved with a small monogram. Hinged gold cuvette.D. White enamel with Arabic numerals and sunk subsidiary seconds. Gold "spade" hands. M. 21''', gilt brass, 19 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance spring with a swan-neck micrometric index.Signed on the dial, case and movement.Diam. 57 mm.

Vacheron & Constantin, Genève, Chronomètre Royal, No. 367875, case No. 228815, completed in October 1914, sold to one of the agents in Argentina.Fine 18K gold keyless watch.

C. Three body, massive, "demi-bassine" with engine-turned back à grains d'orge. Hinged gold cuvette.D. White enamel with bold Breguet numerals and sunk subsidiary seconds. Gold "spade" hands. M. 22''', gilt brass, 19 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance spring with a swan-neck micrometric index.Signed on the dial, case and movement.Accompanied by Vacheron Constantin Certificate.Diam. 57 mm.

Vacheron & Constantin, Genève, No. 391683,case No. 6876 by Verger France, Paris, retailed by Maquet, Paris, circa 1921.Very fine 18K gold and enamel, square, keyless dress watch with matching gold coral and onyx chain, in original fitted box.

C. Three piece square with shaped corners, black enamel band and bow, red enamelled bezel and back, gold stylised Chinese tree on the back centred over a black ground, the band with black champlevé decoration in a Chinese pattern, coral-set winding crown. D. Gold satiné with "Chinese" Arabic numerals. Blued steel Breguet hands. M. 16''', rhodium plated, 18 jewels, straight line lever escapement, cut bimetallic balance, eight adjustments, flat balance spring.Signed on the dial and movement, case with Verger Master mark. Box signed by Maquet.Dim. 43 x 43 mm.

Vacheron & Constantin, Genève, No. 388008case No. 258291, completed in 1921, sold in February 1931.Very fine and rare 18K gold hunting cased keyless pocket chronometer, with days of the week. Bulletin de Première Classe de l'Observatoire Astronomique de Genève, awarded a Mention honorable with 680 marks at the timing contest in 1926.

C. Four body, massive, "demi-bassine", polished. Gold cuvette engraved: Certificat de 1ère Classe à l'Observatoire Astronomique de Genève. D. White enamel with Breguet numerals sunk subsidiary seconds and days of the week. Gold "spade" hands. M. 19''', gilt brass,21 jewels, straight line lever escapement, Crausaz, brass-invar Guillaume balance adjusted by E. Olivier, blued steel balance spring with terminal curve and special micrometric index.Signed on the dial, case and movement.Accompanied by photocopies of the timing contest records.Diam. 53 mm.

Vacheron & Constantin à Genève, No. 408711,case No. 254274, circa 1928.Fine and almost certainly unique 18K gold, keyless watch striking one blow every 15 seconds.

C. Three body, massive, demi-bassine, polished. Hinged gold cuvette. D. White enamel with bold Breguet numerals and sunk subsidiary seconds. Blued steel Breguet hands. M. 18''', rhodium plated,24 jewels, straight line lever escapement, cut bimetallic balance, eight adjustments, Breguet balance spring with swan neck micrometric index. A small hammer, lifted by a ratchet wheel mounted onthe minute wheel arbor, strikes one blow every15 seconds, with bolt in the band.Signed on the dial, cuvette and movement.Diam. 50 mm.

Vacheron & Constantin, Genève, No. 375422,case No. 231647, circa 1916.Very fine 18K gold keyless minute repeating watch.

C. Three body, massive, "demi-bassine", polished. Hinged gold cuvette engraved with a dedication dated 1917. D. Frosted gold engine turned with bold Breguet numerals and sunk subsidiary seconds. Gold Breguet hands. M. 17''', nickel plated, 29 jewels, straight line lever escapement, cut bimetallic balance, eight adjustments, Breguet balance spring.Repeating on gongs with slide in the band.Signed on the dial, case and movement.Diam. 48 mm.

Vacheron & Constantin, Genève, No. 398905,case No. 250724, circa 1920.Fine 18K gold slim keyless dress watch.

C. Three body, massive, "demi-bassine", polished. Hinged gold cuvette. D. Frosted silver with bold Breguet numerals and sunk subsidiary seconds. Blued steel "roman simples" hands. M. 17''', rhodium plated, 18 jewels, straight line lever escapement, cut bimetallic balance, eight adjustments, Breguet balance spring.Signed on the dial, cuvette and movement.Diam. 45 mm.

Vacheron & Constantin, Genève, No. 410211,case No. 258403, circa 1929.Very fine, slim, 18K white and yellow gold, keyless dress-watch with triple digital calendar.

C. Three piece, massive, "variée" polished. The bezels with alternated white and yellow gold rims, the white gold back engraved with a monogram. D. Satiné silver eccentric with Arabic numerals and subsidiary seconds, aperture for the digital days of the week, dates and months. Blued steel Breguet hands. M. 17''', rhodium plated, "fausses côtes" decoration, 18 jewels, straight line lever escapement, cut bimetallic balance adjusted to temperatures and all positions, Breguet balance spring.Signed on the dial, case and movement.Diam. 45 mm.

Vacheron & Constantin à Genève, No. 411702,circa 1929.Very fine and elegant, slim, platinum, keyless minute repeating dress watch.

C. Three piece, massive, "bassine pincée", satiné, the back centred with the engraved initials E.G.R..D. Silver satiné with applied gold Breguet numerals, outer minutes ring and sunk subsidiary seconds. White gold Breguet hands. M. 17''', rhodium plated, 29 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance spring. Repeating on gongs with slide in the band.Signed on the dial and movement.Diam. 54 mm.

Vacheron & Constantin, Genève, No. 365568,case No. 260625, circa 1935.Very fine and rare, 18K yellow gold gentleman's wristwatch.

C. three body, polished, concave lugs, winding-crown on the 12, G. & S. Co. Ltd. stamped inside the case back. D. two-tone matt silver with painted indexes and Arabic numerals, auxiliary seconds dial. "Epée" gold hands. M. 11''', gilt brass, 17 jewels, lever escapement, cut bimetallic balance, flat balance spring.Dial, case and movement signed.Diam. 29 mm.

Vacheron & Constantin, Genève, No. 416049,case No. 259046, circa 1935.Very fine, rectangular curved, pink gold and stainless steel gentleman's wristwatch.

C. two body, bicolour, polished and brushed, pink gold rim on the lateral bezel, bevelled sides. D. two-tone silver and gold painted with painted Arabic numerals. "Epée" pink gold hands. M. 9''', rhodium plated, 15 jewels, lever escapement, cut bimetallic balance adjusted to temperatures and 3 positions, flat balance spring.Dial, case and movement signed.Dim. 22 x 38 mm.

Vacheron & Constantin, Genève, No. 416052,case No. 259049, circa 1935.Very fine, rectangular curved, pink gold and stainless steel gentleman's wristwatch.

C. two body, bicolour, polished and brushed, pink gold rim on the lateral bezel, bevelled sides. D. two-tone silver with painted gold Arabic numerals and indexes. "Epée" gold hands. M. 9''', rhodium plated, 15 jewels, lever escapement, cut bimetallic balance adjusted to temperatures and 3 positions, flat balance spring.Dial, case and movement signed.Dim. 22 x 38 mm.

Vacheron & Constantin, Genève, No. 430814,case No. 275806, circa 1942.Very fine and rare, square, stainless steel gentleman's wristwatch.

C. two body, polished and brushed, teardrop lugs.D. tricoloured matt and polished silver and copper-coloured with applied pink gold indexes and Arabic numerals, auxiliary seconds dial. "Bâton" pink gold hands. M. 9''', rhodium plated, "fausses côtes" decoration, 17 jewels, lever escapement, monometallic balance adjusted to temperatures, self-compensating flat balance spring.Dial, case and movement signed.Dim. 25 x 36 mm.