Vacheron & Constantin, Genève, No. 614935, case No. 452976, Ref. 6510, completed in December 1969, sold on 23 July 1970 to Swimex, Hong Kong. Very fine 18ct gold gentleman's wristwatch fitted into a 20 dollars gold coin dated 1881, with 18 ct gold integrated bracelet.

C. massive, polished, opening of the coin by the means of a secret push-piece on the reeded band. D. champagne with painted indexes. «Bâton» blued steel hands. M. 9"'-1003 Geneva Quality Hall Mark, rhodiumed, "fausses côtes" decoration, 17 jewels, lever escapement, monometallic balance adjusted to heat, cold isochronism and 5 positions, self-compensating flat balance-spring. Dial, case anc movement signed. In very good condition. Diam. 34 mm.

Vacheron & Constantin, Genève, No. 538577, case No. 368331, Ref. 4928, completed in November 1959, sold on 30 November 1959 to Vacheron Constantin, New York. Very fine 18ct gold purse watch fitted into a 20 dollars gold coin dated 1904.

C. massive, polished, opening of the coin by the means of a secret push-piece on the reeded band. D. champagne with painted indexes. «Bâton» blued steel hands. M. 9"'-1003 Geneva Quality Hall Mark, rhodiumed, "fausses côtes" decoration, 17 jewels, lever escapement, monometallic balance adjusted to heat, cold isochronism and 5 positions, self-compensating flat balance-spring. Dial, case and movement signed. In very good condition. Diam. 34 mm.

Vacheron & Constantin, Genève, No. 570019, case No. 407114, Ref. 6510, completed in May 1964, sold on 5 October 1964 to Vacheron Constantin, New York. Very fine 18ct gold gentleman's wristwatch fitted into a 20 dollars gold coin dated 1880.

C. massive, polished, straight lugs, opening of the coin by the means of a secret push-piece on the reeded band. D. champagne with painted indexes. «Bâton» blued steel hands. M. 9"'-1003 Geneva Quality Hall Mark, rhodiumed, "fausses côtes" decoration, 17 jewels, lever escapement, monometallic balance adjusted to heat, cold isochronism and 5 positions, selfcompensating flat balance-spring. Dial, case and movement signed. In very good condition. Diam. 34 mm.

Vacheron & Constantin, Genève, No. 422599, case No. 509768, cornpleted in 1990. Very fine and rare platinum gentleman's wristwatch with round button chronograph, register and tachometer, with fitted box.

C. massive, polished, screwed back, waterproof. D. two-tone silver with painted Arabic numerals and indexes + auxiliary seconds and 45 minutes register dials, outer tachometer graduation. «Bâton» blued steel hands. M. 13"'-295 rhodiumed, "fausses côtes" decoration, 21 jewels, lever escapement, cut bimetallic balance adjusted to temperatures and 5 positions, selfcompensating Breguet balancespring. Dial, case and movement signed. In excellent condition. Diam. 35 m m .

Vacheron & Constantin, Genève, No.418220, case No. 92245-586067, completed in the 1980's. Very rare and important 18 ct. gold, keyless pocket chronometer with one minute tourbillon regulator.

C. Double body, "bassine", polished, with invisible hinges, yellow gold pendant and bow. D. White enamel with Arabic numerals and sunk subsidiary seconds. Blued steel "Breguet" hands. M. Glazed 19-, rhodium plated, "fausses côtes" decoration, 15 jewels, with going barrel. One minute tourbillon, the carriage with three polished steel equidistant arms and mat steel bridge, lateral lever escapement with brass-invar Guillaume balance, blued steel balance spring with terminal curve. Signed on the dial, case and movement. In very good condition. Diam. 58 mm.

Vacheron & Constantin, "Mercator", No. 1, Ref. 4350, especially made for "The Art of Vacheron Constantin" auction. Exceptionally fine, self-winding 42 hours power reserve, 18 ct. gold gentleman's wristwatch with champlevé "cloisonné" enamel dial representing Europe, Africa and Asia, with double sector graduated for 12 hours and 60 minutes.

C. inspired by the fine "Géographique" launched at the end of the 1940's, massive, olished, stepped bezel, overhanging fluted rugs, sapphire glass back. D. gold with polychrome " cloisonné" enamel representing the Continents, below, the two sectors graduated from 1 to 12 for the hours and from 0 to 60 for the minutes with painted Arabic numerals and indexes. After each course, the hands, thanks to a special system, return to zero after respectively half a day and one hour. The gold "Dauphine" geometrical hands, in shape of a marine compass, are placed at 12 o'clock rather than at the centre of the dial. This figure is similar to the one that Gérard Mercator, the famous cartographer, used his life long. M. 12 1/2-, cal. 1120, extra-flat (2,45 mm thick) rhodiumed, "fausses-côtes" decoration, 36 jewels, lever escapement, annular glucidur balance adjusted to heat, cold, isochronism and 5 positions, 19'800 vibrations per hour, hanging barrel, self-compensating flat balancespring, 21ct. gold rotor engraved "1594 - Gérard Mercator - 1994". Dial, case and movement signed. In mint condition. Diam. 33 mm.