Vintage 18K Yellow Gold Tonneau-Shaped Cocktail Watch
Watch (Cocktail/Dress) · Yellow Gold. High-karat alloy with a deep, buttery saturation likely containing silver and copper for durability and color richness.
Purity: 18K/750 (75% pure gold). The item appears to be solid gold based on the deep yellow hue and the stamped serial number on the case back, typical of luxury timepieces of its era.
Type
Watch (Cocktail/Dress)
Purity
18K/750 (75% pure gold). The item appears to be solid gold based on the deep yellow hue and the stamped serial number on the case back, typical of luxury timepieces of its era.
Gold Type
Yellow Gold. High-karat alloy with a deep, buttery saturation likely containing silver and copper for durability and color richness.
Weight
Estimated gold weight of case: 8-12 grams. Total weight varies with movement/strap. Solid construction rather than hollow.
Description
An elegant vintage women's cocktail watch featuring a solid 18K yellow gold tonneau-shaped case. This piece represents the pinnacle of mid-century feminine luxury, designed to be worn as functional jewelry. Its minimalist case back and textile cord strap emphasize the sleek, aerodynamic lines of post-war design.
Key Features
Tonneau-shaped gold case, manual-wind knurled crown, stamped serial number, and distinctive cord-lug integration.
Color & Finish
Classic rich yellow. The finish is a soft high-polish that has acquired a fine 'patina of light scratches' (micro-marring) consistent with vintage wear.
Hallmarks & Stamps
A 6-digit serial number (132474) is visible at the bottom of the case back. Purity markings are likely inside the case back or on the lugs. The 'leboncoin' watermark suggests a French market origin.
Dimensions Estimate
Case diameter approximately 15mm-18mm (sub-petite); length approx 22mm. Designed for a formal woman's aesthetic.
Gemstones & Inlays
None visible on the exterior; focus is on the geometric gold case and the mechanical functionality.
Clasp & Closure
Integrated cord-style strap with a gold-tone fold-over or jewelry clasp (partially obscured). Includes a gold slider bead for adjustment.
Chain & Links
The watch features a traditional black cord strap, common for mid-century cocktail watches, held by integrated gold T-bar or hooded lugs.
Craftsmanship Details
Machine-pressed and hand-finished case. The crisp edges of the tonneau shape and the tight fit of the crown indicate high-quality manufacturing.
Authentication Indicators
The depth and precision of the numerical stamping, the specific oxidation color of the high-karat gold, and the presence of a winding crown (indicating mechanical movements typical of genuine gold watches).
Origin & Maker
Likely French or Swiss, given the case style and regional site listing. Could be an Omega, Longines, or Tissot variant, though the dial is not shown.
Era & Period
Retro/Mid-Century Modern (1940s-1950s). The tonneau (barrel) shape and cord strap are hallmark design elements of this period.
Age Estimate
Circa 1945-1955. The stamped serial number format and the knurled crown are period-correct.
Cultural Significance
Reflects the post-WWII return to glamour and the transition of watches from utilitarian tools to high-fashion accessories.
Condition Notes
Very Good. Micro-scratches on the case back suggest frequent use but no major dents or structural thinning. Crystal and dial condition unknown.
Value Estimate
Melt value approximately $500-$700 (case only); Retail/Collectible value $900-$1,400 depending on brand and movement condition.
Care & Maintenance
Avoid moisture as vintage seals are likely compromised. Professional movement servicing every 5 years. Clean gold case with a jewelry cloth; replace cord if frayed.
Similar Items
14K gold filled variants (often marked 'GF'), or similar period pieces by Rolex (Chameleon) or Hamilton.
Interesting Facts
Cocktail watches became popular because it was once considered 'unladylike' to check the time at social events; hence, they were designed to look like bracelets.