Antique 18K Yellow Gold French Cylinder Escapement Pocket Watch, 10 Rubis
Watch (Open Face or Hunter Case Pocket Watch) · Yellow Gold alloyed with copper and silver for a traditional European warm tone.
Purity: 18K Gold (750/1000). The gold content is 75% pure gold, often found in high-quality European timepieces of the 19th century.
Type
Watch (Open Face or Hunter Case Pocket Watch)
Purity
18K Gold (750/1000). The gold content is 75% pure gold, often found in high-quality European timepieces of the 19th century.
Gold Type
Yellow Gold alloyed with copper and silver for a traditional European warm tone.
Weight
25 to 45 grams total weight. The gold case weight (melt value) is typically 8 to 15 grams excluding the movement.
Description
An elegant example of 19th-century horology, this 18K gold pocket watch features a 'Cylindre' escapement and a 10-jewel movement. The inner dust cover, or cuvette, is beautifully engraved in flowing cursive, protecting the delicate mechanical components from debris while presenting a luxurious golden interior.
Key Features
Mechanical cylinder escapement, 10-jewel movement count, 18K solid gold construction, and hand-engraved French nomenclature.
Color & Finish
Classic pale yellow gold with a matte/satin frosted cuvette finish and polished case edges. The interior dust cover displays a soft, light-diffusing texture.
Hallmarks & Stamps
Engraved 'Cylindre 10 rubis' in cursive script. Purity marks (likely a French Eagle's Head or '18K/750') and case maker initials would be located on the inner case back or neck.
Dimensions Estimate
35mm to 42mm diameter. A standard mid-sized pocket watch, potentially a lady's pendant watch or a small gentleman's vest watch.
Gemstones & Inlays
10 natural ruby jewels (bearing jewels) within the movement to reduce friction. These are functional components, not decorative external gemstones.
Clasp & Closure
Hinged single-jointed dust cover (cuvette). The case likely features a snap-closure bezel or a spring-release hunter lid.
Chain & Links
N/A (Pocket watch case). Edge detail is smooth with a traditional rounded profile.
Craftsmanship Details
Hand-hinged case construction, precision lathe-turned movement plates, and hand-graver inscribed lettering.
Authentication Indicators
Hand-engraving quality, hinge construction, and the specific 'Cylindre' nomenclature which matches the typical production quality of genuine 18K French cases.
Origin & Maker
Originating from France or Switzerland for the French market. Often produced by anonymous high-quality regional workshops using 'Ebauche' movements.
Era & Period
Late Victorian / Napoleon III (circa 1870-1890). The use of the cylinder escapement and cursive engraving style is reflective of mid-to-late 19th-century French watchmaking.
Age Estimate
Circa 1880. Estimates are based on the transition from cylinder escapements to lever escapements during this period.
Cultural Significance
Portable timepieces were the ultimate status symbols of the 19th century, representing the industrial revolution's impact on personal time management and wealth.
Condition Notes
Very Good. The cuvette shows minor surface scratches consistent with use. The hinge appears intact. Tarnish suggests the presence of copper in the gold alloy, common in 18K French pieces.
Value Estimate
$600 - $1,200 USD. Value is based primarily on the 18K gold weight (melt value) plus a collectible premium for the mechanical history and brand.
Care & Maintenance
Do not submerge. Clean case with a dedicated gold polishing cloth. Seek a specialized horologist for movement lubrication and cleaning every 5-10 years.
Similar Items
18K Lever Escapement Pocket Watch (more accurate movement), Gold-filled (GF) or Rolled Gold (RGP) versions which would show brass wear through the edges.
Interesting Facts
The '10 Rubis' refers to the watch's jewels. In the 1800s, having ten jewels was a mark of a mid-to-high grade movement, ensuring the longevity of the gear pivots.