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Swiss 18K Rose Gold 'American Calendar' Pocket Watch

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

circa 1890

The watch is housed in a four-body polished 'bassine' case with a hinged gold cuvette, measuring 50 mm in diameter. The white enamel dial displays painted radial Roman numerals, an outer minute track with Arabic numerals at five-minute intervals, and three apertures positioned below 12 o'clock indicating the day of the week, the date, and the month.

It utilizes yellow gold spade hands and includes a subsidiary seconds dial. Internally, the 18-jewel, 41 mm (18 ligne) frosted gilt movement is equipped with wolf's tooth winding, a counterpoised straight-line lever escapement, a cut-bimetallic compensation balance, and a steel Breguet balance spring with an index regulator.

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
Calendar & astronomical watch
Jewels
18 jewels
Case type
Four-body, bassine, polished, hinged gold cuvette
Escapement
Counterpoised straight-line lever
Case number
13313
Case material
18K rose gold
Dial markings
Painted radial Roman numerals
Movement size
41 mm (18''')
Place recorded
Switzerland

Design

Case and Dial
The watch is enclosed in a four-body, polished 18K rose gold case in the 'bassine' style. It features a hinged gold cuvette protecting the internal movement components and measures 50 mm in total diameter. The exterior remains in a polished finish, as noted in the auction condition assessment. This Swiss keyless pocket watch, dated circa 1890, is crafted from 18K rose gold and features a calendar complication with moon phases. The timepiece is attributed to Swiss manufacture and is dated to circa 1890. The white enamel dial is configured with painted radial Roman numerals and an outer minute track featuring Arabic numerals at five-minute intervals. Centrally, yellow gold spade-shaped hands indicate the time. The calendar display is organized via three distinct apertures arranged below the 12 o'clock position, which provide information for the day of the week, the date, and the month.
Visible features
• White enamel dial with three calendar display apertures • Polished gold case with keyless winding crown • Yellow gold spade style hands • Subsidiary seconds dial positioned at six o'clock
Movement and Escapement
The internal mechanism is a 41 mm (18 ligne) frosted gilt movement set with 18 jewels. The winding system utilizes a wolf’s tooth mechanism, and the regulation is controlled via an index regulator. The escapement is a counterpoised straight-line lever type, paired with a cut-bimetallic compensation balance and a steel Breguet balance spring. This setup is reported to be in good condition, although the auction house recommends an overhaul.
Condition and Attribution
It carries the case number 13313, and the gold case is hallmarked. The auction house has provided a condition grading for the specific components of the watch. The grading system employed by the auctioneer identifies the case, movement, and dial as 'Good'. It is noted that the movement is in good condition, but a full service is advised for the prospective owner.

Identification

Serial number
13313
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: The watch requires an overhaul as reported by the auction house
  • Research required: General information provided about 'American' calendar history contradicts the early date of this specific watch
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