18K Yellow Gold French Art Deco Pocket Watch with Matching Fancy Link Chain
Watch (Pocket Watch) and Albert Chain · Yellow Gold; a rich, warm alloy likely containing silver and copper for a traditional French hue.
Purity: 18K (750 fineness); contains 75% pure gold. High-grade purity typical of fine European horology.

Type
Watch (Pocket Watch) and Albert Chain
Purity
18K (750 fineness); contains 75% pure gold. High-grade purity typical of fine European horology.
Gold Type
Yellow Gold; a rich, warm alloy likely containing silver and copper for a traditional French hue.
Weight
Total weight approx. 85-110 grams (standard for high-grade 18K hunter or open-face cases with solid chains).
Description
An exquisite example of early 20th-century horology, this 18K yellow gold pocket watch set epitomizes Art Deco sophistication. The case features a striking geometric harlequin or diamond-pattern engine-turned finish that captures light with a subtle satin glow. It is paired with a matching decorative fancy link chain, transforming a functional timepiece into a significant piece of masculine jewelry.
Key Features
Geometric diamond engine-turned case (Guilloché), matching period-correct fancy link chain, and high-purity 18K gold construction.
Color & Finish
Deep yellow gold with a satin/brushed matte finish on the watch case featuring engine-turned engine-engraved diamond patterns. The chain links exhibit a bright polish on raised elements and textured low points.
Hallmarks & Stamps
Likely bears the French 'Eagle's Head' (Tête d'Aigle) hallmark for 18K gold and a lozenge-shaped maker's mark within the inner case lid and on the jump rings/clasp of the chain.
Dimensions Estimate
Case diameter approx. 48-52mm (Standard Size 16/18); Chain length approx. 12-14 inches (30-35cm).
Gemstones & Inlays
None visible; decorative focus is on Geometric Engine-Turning (Guilloché) and detailed metalwork.
Clasp & Closure
Swivel/Dog-clip clasp on the chain end for watch attachment; bolt ring at the top. Bow and crown assembly at 12 o'clock on the watch.
Chain & Links
Decorative Fancy Link chain consisting of alternating elongated oval filigree bars and small circular connectors. Hand-assembled with precise soldering.
Craftsmanship Details
High-level guilloché engraving which requires a steady hand and a rose-engine lathe. The chain links are hand-joined, demonstrating superior French jewelry standards of the early 20th century.
Authentication Indicators
The color saturation is consistent with 18K yellow gold. French hallmarks (if present) are historically accurate for this design era and quality level.
Origin & Maker
France (identified by the leboncoin marketplace source and stylistic hallmarks); likely a prestige jeweler like LIP, Zenith (French case), or an atelier in Besançon.
Era & Period
Art Deco (circa 1920s-1935); characterized by the geometric diamond engine-turning and sleek, aerodynamic lines.
Age Estimate
Circa 1925-1930 based on the diamond pattern guilloché and the specific style of the fancy link chain.
Cultural Significance
A symbol of status and punctuality for the European gentleman of the interwar period. This piece reflects the transition from Victorian ornate floral styles to modern industrial geometry.
Condition Notes
Very Good; the engine turning remains crisp with minimal surface 'pocket wear'. The crown shows sharp knurling. No visible dings or deep scratches.
Value Estimate
Market value approx. $4,000 - $6,500 USD, depending on the movement's brand/complications. Value is derived from both the high gold weight and the collector desirability of Art Deco sets.
Care & Maintenance
Clean with a soft microfiber cloth only. Do not use ultrasonics on the watch head as it can disrupt movement oils. Wind daily if in use; store in a humidity-controlled environment.
Similar Items
Vacheron Constantin or Patek Philippe dress pocket watches from the same era, typically featuring similar movement quality but often higher premiums for the brand name.
Interesting Facts
During the Art Deco period, pocket watches became thinner and more decorative (so-called 'dress watches') as wristwatches began to gain popularity following WWI.