18K Yellow Gold French Art Deco Lady's Cocktail Watch with Link Bracelet
Jewelry Watch, Cocktail Watch · Yellow Gold. The classic rich warm hue suggests a high-karat copper and silver alloy typical of early 20th-century European jewelry.
Purity: Likely 18K (750 fineness) based on French origin and markings. This represents 75% pure gold content alloyed for durability. Common for high-end European vintage watches.

Type
Jewelry Watch, Cocktail Watch
Purity
Likely 18K (750 fineness) based on French origin and markings. This represents 75% pure gold content alloyed for durability. Common for high-end European vintage watches.
Gold Type
Yellow Gold. The classic rich warm hue suggests a high-karat copper and silver alloy typical of early 20th-century European jewelry.
Weight
Estimated total weight 15-25 grams. The casing and bracelet are likely solid gold, though the internal mechanical movement accounts for about 3-5 grams of non-precious weight.
Description
An exquisite example of early 20th-century luxury, this lady's cocktail watch serves as both a functional timepiece and a sophisticated piece of jewelry. Its octagonal case is a hallmark of the Art Deco movement, providing a bold silhouette that is softened by the fluid, high-polish link bracelet.
Key Features
Octagonal geometric case, French 18K assay marks, integrated bracelet design, and a mechanical hand-wound movement indicating high craftsmanship.
Color & Finish
Rich yellow gold with an aged patina. The case back shows a high-polish finish that has developed a 'frosted' look from fine utilitarian scratches consistent with skin contact.
Hallmarks & Stamps
A small eagle's head hallmark (tête d'aigle) is partially visible on the lug/attachment, which is the French assay mark for 18K gold. Serial numbers are stamped on the case back edge.
Dimensions Estimate
Case size approximately 18mm x 18mm (octagonal); Bracelet length approximately 6.5 to 7 inches; Case thickness approx 6mm.
Gemstones & Inlays
No gemstones visible on the reverse; the crown is finished in a sapphire-colored cabochon or dark knurled steel. The dial side likely features enamel or art deco numerals.
Clasp & Closure
Integrated box clasp with safety catch, common for link-style bracelets of this era to ensure a seamless aesthetic around the wrist.
Chain & Links
Modified link bracelet featuring open-circle connectors and polished oval bars. Hand-assembled with heavy-gauge solid gold wire pins.
Craftsmanship Details
Hand-finished case with crisp beveling on the octagon edges. The bracelet links are expertly soldered and pinned to allow for maximum wrist drape and comfort.
Authentication Indicators
Deeply struck serial numbers on the case back; authentic French assay hallmark on the lug; correct color saturation for 18K yellow gold alloy; mechanical resistance in the crown.
Origin & Maker
French Origin. The hallmark system and 'leboncoin' watermark suggest a French maker. Likely a boutique jeweler or established maison from the Paris district.
Era & Period
Art Deco (1920-1935). Identified by the geometric octagonal watch case, clean lines, and the transition from pocket watches to decorative wrist 'jewelry' watches.
Age Estimate
Circa 1925-1935. The geometric case shape and mechanical manual-wind movement are definitive indicators of the inter-war period.
Cultural Significance
Represents the 'New Woman' of the 1920s—moving away from traditional Victorian aesthetics toward modern, functional, and geometrically bold accessories.
Condition Notes
Good Vintage Condition. Significant surface micro-scratching on the case back. Integrity of the links looks strong, though the crown shows some wear to the knurling.
Value Estimate
Estimated Market Value: $1,200 - $2,500 depending on the brand and movement functionality. Melt value provides a floor of approx $700-$900, but the antiquity carries a premium.
Care & Maintenance
Do not submerge in water (not waterproof). Clean with a soft gold-polishing cloth. Mechanical movement requires professional servicing every 3-5 years to maintain timing.
Similar Items
Cartier Tank (vintage), Patek Philippe cocktail watches, or tank-style watches from the same era by Longines or Omega.
Interesting Facts
During the Art Deco period, watches were often hidden within bracelets because it was considered impolite for a woman to 'check the time' at social gatherings.