Vintage Rio 15 Rubis 14K Yellow Gold Cocktail Watch on Silk Cord
Watch (Vintage Cocktail/Dress Watch) · Yellow Gold (standard alloy with silver and copper to provide a warm, traditional tone).
Purity: 14K (585) typically, though common for this era to be 10K or gold-filled; implies 58.3% pure gold content in the case.
Type
Watch (Vintage Cocktail/Dress Watch)
Purity
14K (585) typically, though common for this era to be 10K or gold-filled; implies 58.3% pure gold content in the case.
Gold Type
Yellow Gold (standard alloy with silver and copper to provide a warm, traditional tone).
Weight
Total gold weight estimated at 4-6 grams (case only, excluding movement and silk cord).
Description
An elegant mid-century ladies' cocktail watch featuring a square yellow gold case with distinctive scrolled, fan-style lugs. The textured silver-tone dial displays Arabic numerals and the 'Rio' branding, exuding vintage charm and functional jewelry aesthetics.
Key Features
Decorative flared lugs, '15 Rubis' mechanical movement, and the original-style black silk cord which was popular for dress watches of this period.
Color & Finish
Classic warm yellow gold with a high-polish finish on lugs; shows significant age-related patina and surface micro-scratches.
Hallmarks & Stamps
Stamped 'RIO' and '15 RUBIS' on the dial; metal purity stamps are likely located on the interior or exterior of the case back (e.g., 14K, 585, or Gold Filled).
Dimensions Estimate
Case diameter approximately 15mm x 15mm; petite ladies' standard fit for the mid-20th century.
Gemstones & Inlays
No external gemstones; internal '15 Rubis' indicates 15 synthetic ruby jewels used as bearings in the mechanical movement.
Clasp & Closure
Typically features a gold-toned fold-over clasp or a central safety chain on the silk cord ends.
Chain & Links
Traditional black silk cord strap (double-loop style) threaded through integrated decorative gold lugs.
Craftsmanship Details
Cast gold case with hand-finished decorative lugs; friction-fit case back; hand-applied dial markers and printed branding.
Authentication Indicators
Authentic period-specific dial typography; mechanical hand-wind crown; hallmark placement consistent with mid-century casing standards.
Origin & Maker
Swiss movement components (indicated by Rubis count) likely cased in the USA or Europe under the 'Rio' brand name.
Era & Period
Retro/Mid-Century (Late 1940s to 1950s) characterized by the cocktail style and utilitarian cord strap.
Age Estimate
Circa 1945-1955 based on the square case shape and the '15 Rubis' mechanical movement specification.
Cultural Significance
Represents the post-WWII era where jewelry-watches became accessible symbols of petite elegance for women's evening wear.
Condition Notes
Good vintage condition. The acrylic crystal shows significant scratching; the dial has minor spotting/oxidation; gold case shows wear consistent with age.
Value Estimate
Primarily valued for its gold scrap content ($150-$250) + a small collector premium if the mechanical movement is functional.
Care & Maintenance
Do not submerge in water; mechanical movement requires professional winding/servicing; use a soft gold polishing cloth on the case only.
Similar Items
Vintage Bulova, Hamilton, or Longines cord watches from the same era; often compared to later 'hidden face' bracelet watches.
Interesting Facts
The 'Ruby' count in watches refers to friction-reducing jewels; 15 was considered a standard quality count for reliable daily timekeeping in the 1950s.