VACHERON CONSTANTIN POCKET WATCH, «CHRONOMÈTRE ROYAL»; 18K YELLOW GOLD

Very fine,18K yellow gold, open-face, keyless-winding, roundshaped, pocket watch, with subsidiary seconds at 6. Case-back guilloché engine-turned with «sunray» motif.

Brand: Vacheron Constantin

Model: Chronomètre Royal

Year: Circa 1910

Movement No.: 351871

Calibre: 22’’’ gilded brass, with going barrel, gold screwed chaton (setting) on the central wheel, straightline lever escapement, compensated balance with gold poising screws and blued steel hairspring with terminal curve, index regulator with swan-neck spring and micrometric screw

Case No.: 216238

Diameter: 57 mm

Signature: Dial, Case and Movement