Vintage 18K Yellow Gold Tonneau-Shaped Cocktail Watch
Watch (Cocktail/Dress Watch) · Yellow Gold with a vibrant, warm tone typical of European high-karat alloys.
Purity: 18K (750 fineness) solid gold case, which constitutes 75% pure gold alloyed with silver and copper.

Type
Watch (Cocktail/Dress Watch)
Purity
18K (750 fineness) solid gold case, which constitutes 75% pure gold alloyed with silver and copper.
Gold Type
Yellow Gold with a vibrant, warm tone typical of European high-karat alloys.
Weight
Estimated case weight of 8-12 grams (gold content only, excluding movement and strap).
Description
This elegant vintage cocktail watch features a classic 18K yellow gold tonneau-shaped case. Designed as a piece of functional jewelry, it represents the mid-century trend of petite, feminine timepieces meant for evening wear. The case back shows evidence of hand-finishing and a stamped serial number, characteristic of luxury watchmaking from the post-war era.
Key Features
Tonneau (barrel) shaped gold case, integrated cord lugs, and a manual wind movement signified by the side crown.
Color & Finish
Rich yellow gold with a high-polish finish on the back and bezel; visible surface patina and micro-scratches from age.
Hallmarks & Stamps
A stamped serial or reference number '132474' is visible on the case back; a possible tiny hallmark is centered above it (likely a Swiss Helvetia or French Eagle head stamp).
Dimensions Estimate
Approximate case diameter of 15mm x 22mm (tonneau/barrel shape), fitting the 'petite' vintage jewelry category.
Gemstones & Inlays
No gemstones visible on the case back; however, cocktail watches of this era often featured a diamond-set bezel or a clean minimalist minimalist face.
Clasp & Closure
Mechanical crown for winding at the 3 o'clock position; likely a fold-over jewelry clasp on the cord strap.
Chain & Links
Black double-cord 'silk' or textile strap with gold sliding spacers, a classic mid-century cocktail watch construction.
Craftsmanship Details
Precision-milled case with hand-stamped identifiers; fine solder work on the cord-attachment lugs; high-quality high-karat alloy blending.
Authentication Indicators
The deep, consistent yellow hue of the 18K alloy, the presence of a stamped serial number, and the lack of plating wear on high-friction areas suggest solid gold construction.
Origin & Maker
Likely Swiss or French origin given the case style; maker's mark is typically found inside the case back on such models.
Era & Period
Mid-Century Modern / Retro Period (circa 1940s-1950s) indicated by the tonneau shape and cord attachment.
Age Estimate
Likely produced between 1945 and 1955 based on the case geometry and use of cord straps.
Cultural Significance
Represents the transition of watches from tools to high-fashion accessories for the Western elite in the mid-20th century.
Condition Notes
Good condition; visible surface wear ('brassing' is not present, indicating solid gold), some deep scratches near the case-opening tab. Strap shows minor fraying.
Value Estimate
Melt value approx. $450-$650 depending on weight; retail/collector value approx. $1,200-$2,500 based on brand and movement condition.
Care & Maintenance
Mechanical movements of this age require servicing every 3-5 years. The gold case should be cleaned with a soft cloth; avoid ultrasonic cleaners if the water-resistance seals are aged (which is likely).
Similar Items
Vintage Cartier Baignoire, 1950s Omega cocktail watches, or Rolex Precision models from the same era.
Interesting Facts
Cocktail watches became popular in the early 20th century because it was socially frowned upon for women to check the time during social events; hence, watches were disguised as ornate jewelry.