Diamond wristwatch, 1920s and a diamond ring, 1930s

The wristwatch, to a tonneau-shaped case, millegrain-set with circular- and single-cut diamonds, the gallery engraved in a scroll motif, mounted in platinum, length approximately 160mm, case signed Plojoux Genève and numbered, Swiss assay marks, with two additional metal links, the ring of modified oblong form set with baguette, square-, circular- and single-cut diamonds, size 49.

Wristwatch: Metal tested as platinum. Case stamped Plojoux Geneve and numbered 1292. Diamonds estimated to weigh approximately 2.00 carats, G-I colour, VS-SI clarity (few I's). With an additional plain link measuring approximately approximately 1.00cm. Mechanical movement in running condition at the time of cataloguing, but please note that Sotheby's does not guarantee future working condition of watches. Signs of normal wear to the metal, scratches commensurate with age and use. In good condition. Ring: Metal tested as platinum. Diamonds estimated to weigh approximately 3.50 carats, on average H-I colour, VS-SI clarity, one baguette with a large chip visible under close inspection. Sizing band and evidence of resizing. Signs of normal wear to the metal, scratches consistent with use and age. In good condition.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Please note that colour, clarity and weight of gemstones are statements of opinion only and not statements of fact by Sotheby's. We do not guarantee, and are not responsible for any certificate from a gemological laboratory that may accompany the property. We do not guarantee that watches are in working order. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue, in particular to the Notice regarding the treatment and condition of gemstones and to the Notice regarding import of Burmese jadeite and rubies into the US.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."