Vacheron Constantin Historique, Ref. 7391 a very fine and rare limited edition 18ct gold wristwatch with lapis lazuli dial, 1970s, manufacturer: Vacheron Constantin, year: circa 1970, reference no.: 7391/Q, movement no.: 656'467, case no.: 489'835, material: 18ct gold, calibre: automatic, cal. K1120, 36 jewels, bracelet/strap: 18ct gold Vacheron Constantin mesh bracelet, max length 7.48 in., clasp/buckle: 18ct gold Vacheron Constantin clasp, dimensions: 1.22 in. diameter, signed: case, dial, movement and clasp signed, accompanied by a Vacheron Constantin Certificat d'Origine et de Garantie and box.
- Lapis Lazuli - Lapis lazuli is a semi-precious deep blue coloured stone, sometimes with gold inclusions, that has been used for thousands of years for jewellery, decorative items and decoration.
It is mined in Afghanistan, Siberia, Chile, USA and Burma. The mines in north-eastern Afghanistan are the largest source of lapis lazuli, and have been operating for over 6,000 years.
They were the source of the stone for the ancient Egyptian, Greek and Roman civilsations.
- Circa - A Latin term meaning 'about', often used in the antique trade to give an approximate date for the piece, usually considered to be five years on either side of the circa year. Thus, circa 1900 means the piece was made about 1900, probably between 1895 and 1905. The expression is sometimes abbreviated to c.1900.
- Movement - The technical name for the workings of a clock or watch, and does not include the dial or case.
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