A lady's diamond Classique wristwatch, Breguet, manual, two tone dial, no. 4951. Diamond set bezel, cabochon sapphire crown. Case, dial, and bracelet signed. Snap back. Integral, mesh bracelet. 18ct yellow gold. 0.91 in. Total weight 39.74 grams. Length 7.09 in. Case signed and stamped 4302, French assay marks.
- Assay / Assayed - Assaying is the testing of a metal, most commonly silver and gold to determine its ingredients and quality. In Britain, once an item of silver or gold has been assayed, a mark is stamped on it, certifying its purity. Known as hallmark, it derives its name from the Guild Hall of the Goldsmiths' Company, who recieved its Charter in 1327 giving it the power to assay and mark articles of gold and silver.
- Bezel - On a clock or watch, the bezel is the metal frame into which the watch or clock glass is fitted. In clocks, the bezel may include a hinge and a flange, in effect a door to the face of the clock. In jewellery the bezel is a band of metal with a projecting lip that holds the gemstone in its setting.
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