Yellow Gold ?Three-Tone Dial? Vacheron & Constantin, Genève, No. 427265, case No. 267765. Made in 1940. Very fine and rare, 18K yellow gold wristwatch with square button chronograph, register, tachometer, three-tone dial and an 18K yellow gold buckle.

C. Three-body, polished and brushed, flat and curved bezel, concave lugs. D. Three-tone, silver with painted black baton indexes and Arabic half-hour numerals, subsidiary seconds and 30-minute registers, outer minutes and fifth of a second track, outermost tachometer scale. Yellow gold "épée" hands. M. Cal. 13???, rhodium-plated, "fausses-côtes" decoration, 19 jewels, straight-line lever escapement, cut bimetallic balance with timing screws, self-compensating Breguet balance-spring, index regulator. Dial, case and movement signed. Diam. 34 mm. Thickness: 11 mm. From ?The Collection?

Vacheron & Constantin, Genève, No. 427265, case No. 267765. Produced in the 1930's.Very fine, 18K yellow gold gentleman's wristwatch with square button chronograph, register and tachometer. Accompanied by box and certificate.

C. three-body, solid, polished and brushed, concave lugs. D. two-tone silver with painted Arabic numerals and indexes, auxiliary "guilloché" dials for the seconds and 45 minutes register, outer tachometer graduation. "Epée" yellow gold hands. M. Cal. 13''' rhodium-plated, 17 jewels, straight line lever escapement, cut bimetallic balance, Breguet balance-spring.Dial, case and movement signed.Diam. 33 mm.

Vacheron & Constantin, Genève, No. 427265,case No. 267765, circa 1938.Very fine and rare, 18K yellow gold gentleman's wristwatch with square button chronograph, register and tachometer.

C. three body, polished, concave lugs. D. two-tone silver with painted Arabic numerals and indexes, auxiliary seconds and 45-minute register dials, outer tachometer graduation. "Bâton" yellow gold hands. M. 13''', rhodium plated, "fausses côtes" decoration,19 jewels, lever escapement, cut bimetallic balance, Breguet balance spring.Dial, case and movement signed.Diam. 33 mm.