L. Leroy & Cie open-face chronometer pocket watch with Guillaume balance
Record status
Individual type · partial
Period
circa 1913
This open-face pocket watch by L. Leroy & Cie is dated by the auction house to circa 1913. Catalogued in an 18K yellow gold round-shaped case measuring 51 mm in diameter, the watch is powered by a 19-ligne gilded brass keyless-winding movement.
According to the auction notes, the caliber features a going barrel, straight-line lever escapement, and a bimetallic Guillaume balance with a blued steel hairspring. The dial features Roman numerals, an outer five-minute track, and a subsidiary seconds dial at 6 o'clock. The lot was catalogued alongside an Extract from the Archives.
Evidence at a glance
- Linked sources
- 1
- Photograph views
- 1
- Catalogue references
- 0
Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.
Technical characteristics
- Type
- Open-face pocket chronometer
- Caliber
- 19''' gilded brass with Guillaume balance
- Dimensions
- 51 mm
- Signatures
- Dial, case, and movement
- Accompaniment
- Extract from the Archives
- Maker / attribution
- L. Leroy & Cie
- Case Material and Configuration
- 18K yellow gold, open-face, round-shaped
Design
- Dial Display
- The dial is white with black Roman numerals and an outer track showing Arabic numerals at five-minute intervals. Time is indicated by Breguet-style open-tipped hour and slender minute hands finished in yellow. A sunken subsidiary seconds register is positioned at 6 o'clock, corresponding to the catalogued description of subsidiary seconds at 6.
- Visible features
- • White dial with black Roman numerals and an outer track with Arabic numerals at five-minute intervals. • Sunken subsidiary seconds register positioned at the 6 o'clock position. • Round polished yellow gold case with a fluted winding crown, suspended oval bow, and a small pin/pusher on the case band near 11 o'clock. • Breguet-style open-tipped hour hand and slender minute hand in a yellow finish.
- Case and External Construction
- The pocket watch is catalogued as an open-face, keyless-winding timepiece measuring 51 mm in diameter, cased in round-shaped 18K yellow gold. Visual observation shows a round polished yellow gold case with a fluted winding crown, an oval bow, and a small pin/pusher situated on the case band near the 11 o'clock position.
- Reported Movement and Archival Provenance
- The movement is not visible in the provided lot photo and relies upon cataloguer descriptions. It is recorded as a 19-ligne gilded brass caliber with a going barrel, straight-line lever escapement, Guillaume balance, and a blued steel hairspring with terminal curve. The catalog states that the dial, case, and movement are signed. According to an Extract from the Archives dated November 22, 2018, the watch was sold on December 8, 1913, to Monsieur Hainchelin for the amount of 600 francs.
Identification
- Source note
- Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.
Catalogue references
No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.
Research required
- Research required: Movement and interior case details are not visible in the provided photograph and rely solely on auction catalog descriptions.
- Research required: Movement and case serial numbers are not specified in the auction record.