Antique Swiss 18ct Gold & Diamond Convertible Fob Watch

A wonderfully unusual Swiss-made fob watch in 18ct gold, dating to circa 1900. The miniature watch fits into a separate diamond-set outer case, transforming it into a wristwatch. It is this clever convertible design that makes the piece particularly special.The quality is apparent in the small details, from the guilloché enamelled chapter ring and crisp black Roman numerals to the old-cut diamonds surrounding the dial when cased. The richly jewelled outer case gives the watch the presence of a piece of fine jewellery, while preserving the charm of the miniature fob within.A rare and beautifully considered piece, with real appeal for anyone drawn to unusual antique watches. Its combination of decorative detail and ingenious construction is what sets it apart.The details Origin: Swiss-made Period: Circa 1900, late nineteenth to early twentieth century Material: 18ct gold; outer case marked “18k” Design: Miniature fob watch with an additional outer case for conversion to a wristwatch Dial: White, with a guilloché enamelled chapter ring and black Roman numerals Diamonds: 22 old-cut diamonds, estimated at approximately 0.10ct each Estimated total diamond weight: 2.20cts Movement: Cylinder movement Diameter when cased: 2.8cm Weight: 29g Case reference: 2353