Late Victorian Swiss 800 Silver Open-Face Pocket Watch Case
Pocket Watch Case / Horological Object · Unknown Swiss Silversmith for the French Market. The case features a 'Bonne Qualité' (Good Quality) trade stamp often used by smaller workshops in the Jura region of Switzerland producing components for export.
Pattern: Standard Open-Face Pocket Watch with Engine-Turned (Guilloché) Case Back
Type
Pocket Watch Case / Horological Object
Maker
Unknown Swiss Silversmith for the French Market. The case features a 'Bonne Qualité' (Good Quality) trade stamp often used by smaller workshops in the Jura region of Switzerland producing components for export.
Material
800 Silver (80% pure silver, 20% copper). This was the standard for continental silver in countries like Switzerland, Germany, and Italy during the late 19th century.
Dimensions
Estimated diameter of 45-50mm (Men's standard size). Weight for the case alone is approximately 25-35 grams in silver content excluding movement.
Description
This is a continental European 800 silver pocket watch case, designed to house a mechanical movement. The inner case back is richly marked, serving as a testament to the strict assay regulations of the 19th-century European silver trade. The 'Bonne Qualité' mark within the floral wreath was a marketing stamp intended to assure the buyer of the integrity of both the metal and the craftsmanship.
Key Features
The most significant feature is the 'Crab' import hallmark which confirms its travel from Switzerland to France, and the specific 0.800 stamp which identifies its European continental grade metal.
Material & Composition
800 Silver (80% pure silver, 20% copper). This was the standard for continental silver in countries like Switzerland, Germany, and Italy during the late 19th century.
Finish & Decoration
The exterior features include a reeded edge and likely an engine-turned (guilloché) reverse. The interior is matte finished with circular 'perlage' or 'snailing' decorative marks. Includes a stamped 'Bonne Qualité' laurel wreath cartouche.
Hallmarks & Stamps
Includes the '0.800' fineness mark; the Swiss 'Grouse' small silver mark (purity indicator for 800 silver); a 'Crab' mark (French import mark for small silver items 1838–1984); and a serial or case number '830'. It also displays the 'Bonne Qualité' guarantee stamp.
Construction Details
Multi-part assembly consisting of a hinged case back, a bezel, and the central carrier. The case shows evidence of being die-struck for the primary shape with hand-finished hinges and a soldered pendant and bow.
Functional Features
Hinged rear lid for movement access, two winding/setting apertures in the inner dust cover, and a rotating bow for attachment to a watch chain.
Handle & Grip Details
Features a circular silver bow and a spherical pendant. The bow shows significant oxidation and wear at the pivot points, typical for a piece used daily with a chain.
Craftsmanship Details
The markings are cleanly struck, and the perlage finishing on the interior indicates a level of care above basic utility, though it is a mass-produced industrial object of its time.
Authentication Indicators
The presence of dual-national hallmarks (Swiss Grouse and French Crab) is a primary authentication marker. The wear pattern around the hinge and the specific gauge of the silver are consistent with late 19th-century industrial production.
Origin & Manufacturing
Swiss origin (indicated by the Grouse mark) manufactured for export to the French market (indicated by the Crab mark and French text). Likely from the La Chaux-de-Fonds or Le Locle watchmaking districts.
Era & Period
Late Victorian / Fin de Siècle (c. 1880-1900). Stylistic indicators include the specific hallmark combinations and the typeface used in the guarantee stamp.
Age Estimate
Circa 1890. The combination of the Swiss 1882-1934 grouse hallmark and the French import crab mark suggests a late 19th-century production date.
Cultural Significance
Represents the democratization of timekeeping in the late 19th century. While not high-carat gold, 800 silver was the choice of the professional middle class, offering durability and prestige at a lower price point than sterling or gold.
Condition Notes
Very Good to Fair. The silver shows heavy tarnish (sulfide deposits) on the bow and pendant. The interior shows some surface scratching and age-related darkening. The movement and dial are missing, leaving only the outer housing.
Value Estimate
$40 - $80 USD (as a case only). Value is primarily in the scrap silver weight and interest to horological parts collectors rather than as a complete timepiece.
Care & Maintenance
Gentle hand polishing with WRights Silver Cream is recommended. Avoid dipping the piece in liquid cleaners as the hinges can trap moisture and corrode the internal steel pins.
Similar Pieces
Similar cases by Longines or Tissot from the same era; however, those usually carry brand-specific logos rather than generic quality stamps like 'Bonne Qualité'.
Interesting Facts
During this period, Switzerland exported millions of watch cases to France. To comply with French law, these items had to be sent to a French assay office upon entry, which is why we see the tiny 'crab' stamp alongside the Swiss marks.