18K Yellow Gold French Open-Face Pocket Watch (Chronometre Style)
Watch (Pocket Watch, Open-Face) · Yellow Gold (High Karat classic European alloy with a deep warm hue significantly darkened by heavy oxidation/patina).
Purity: 18K (750 fineness) solid gold case, containing 75% pure gold alloyed with copper and silver.
Type
Watch (Pocket Watch, Open-Face)
Purity
18K (750 fineness) solid gold case, containing 75% pure gold alloyed with copper and silver.
Gold Type
Yellow Gold (High Karat classic European alloy with a deep warm hue significantly darkened by heavy oxidation/patina).
Weight
Total weight approx. 85-110 grams; estimated gold weight (case only) approx. 30-40 grams.
Description
An elegant turn-of-the-century open-face pocket watch featuring a crisp white enamel dial with Roman numeral hour markers and Arabic minute tracks. The 18K yellow gold case has acquired a dramatic, dark patina over decades of storage. The ornate gold-toned 'spade' hands and a sub-seconds dial at the 6 o'clock position offer a classic horological aesthetic suitable for high-end collectors.
Key Features
Hand-painted enamel dial, Louis XIV style gold-plated filigree hands, recessed sub-seconds chapter, and a high-karat solid gold case hallmarked for French export/manufacture.
Color & Finish
Deep, tarnished yellow gold with significant atmospheric oxidation (dark patina). Originally high-polish, now appearing matte to bronze due to age.
Hallmarks & Stamps
Eagle's Head hallmark (French 18K standard post-1838) likely on the bow/pendant; serial numbers and '18K' or '0.750' likely interior.
Dimensions Estimate
Case diameter approx. 48mm to 52mm (Standard '16 size' or '18 size' equivalent); approx. 12-14mm thick.
Gemstones & Inlays
No external gemstones; interior movement likely contains 15-17 rubies (synthetic or natural jewels for pivot points). Porcelain/Enamel dial.
Clasp & Closure
Friction-fit hinged back and front bezel; large circular pendant and bow for chain attachment at the 12 o'clock position.
Chain & Links
No chain present; reeded/coin-edge or smooth case middle, smooth circular bail construction.
Craftsmanship Details
Features a high-grade enamel fired dial, hand-set hands, and a precision-milled gold case with integrated hinges and a dust-cover (cuvette).
Authentication Indicators
French Eagle's Head hallmark visible on the pendant; weight-volume ratio consistent with high-karat gold; characteristic tarnishing of antique gold alloys.
Origin & Maker
Likely French origin (indicated by French site watermark 'Leboncoin'); movement may be Swiss (ebauche) cased in France.
Era & Period
Late Victorian / Belle Époque (circa 1890-1910) characterized by the Roman numeral enamel dial and filigree spade hands.
Age Estimate
Circa 1890-1905 based on the sub-seconds dial positioning and the specific filigree design of the hands.
Cultural Significance
Represents the pinnacle of personal timekeeping before the widespread adoption of the wristwatch after WWI; a symbol of status and punctuality in the late 19th-century bourgeois society.
Condition Notes
Fair to Good. Visible heavy tarnish/oxidization on gold case; dial appears remarkably clean with no visible hairlines; crown shows wear; functionality of movement unknown.
Value Estimate
$2,200 - $3,500. Value is derived primarily from the 18K gold melt weight (~$1,800-$2,400) plus a collector's premium for the movement and aesthetic appeal.
Care & Maintenance
Do not use chemical dips; use a dry, soft jewelry cloth for the case. Professional horological service recommended for the movement. Keep away from magnets.
Similar Items
Gold-filled pocket watches (lower value, showing brass wear), 14K American Waltham or Elgin watches, or luxury Patek Philippe pieces of the same era.
Interesting Facts
French 18K gold of this era often utilized a specific 'pink-yellow' alloy that develops a dark, almost purple-brown patina if left unpolished for decades.