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A. van Oostrom Amsterdammer wall clock

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

circa 1750

This antique Amsterdammer wall clock is attributed to the Dutch maker A. van Oostrom, with a production date circa 1750. The clock follows a traditional two-part construction, consisting of a hood that houses the movement and dial, and an elongated lower body designed to accommodate the weights, chains, and pendulum.

The case is constructed from mahogany. The brass dial features a chapter ring with Roman numerals for the hours and Arabic numerals for the minutes, complemented by figurative brass spandrels in the corners. The signature "A. van Oostrom Amsterdam" is engraved on the lower portion of the chapter ring. The dial includes an alarm setting disk at the center and a date aperture positioned above the six o'clock marker. The movement is a 30-hour weight-driven mechanism with an integrated alarm function.

The piece shows evidence of aging, including patina on the wood and brass components.

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
Wall clock
Alarm
Included
Country
Netherlands
Case material
Mahogany
Dial material
Brass
Movement type
30-hour weight-driven
Place recorded
Netherlands
Maker / attribution
A. van Oostrom

Design

Visible features
• Mahogany case with a two-part architectural design • Brass dial with figurative corner spandrels • Engraved maker signature and location on the chapter ring • Visible date aperture located above the six o'clock position
Case and Dial Construction
The clock is housed in a traditional Dutch Amsterdammer-style case, constructed of mahogany. Its design follows a standard two-part vertical configuration, featuring a removable hood for the dial and movement, and a lower section to display the pendulum and weighted drive system. The dial is made of brass and decorated with figurative spandrels in each corner. The chapter ring includes Roman hour numerals and an outer minute track with Arabic numerals. A date aperture is positioned above the six o'clock marker, while a dedicated alarm disk is situated at the center of the dial for manual adjustment.
Movement and Functionality
The timepiece is driven by a mechanical 30-hour movement powered by hanging weights suspended on chains. The clock includes an alarm function, which is adjusted by the central disk found on the dial face. Because the historical service records are unavailable, the condition of the gear train, pendulum, and internal alarm mechanism remains unverified. Collectors are advised to have these components inspected independently to confirm authenticity and operational capacity.
Signatures and Attribution
The clock is attributed to the Dutch maker A. van Oostrom, who operated in Amsterdam during the mid-18th century. The signature is engraved on the brass dial directly into the lower portion of the chapter ring. The work is categorized as an Amsterdammer-style wall clock based on its structural design and period-specific aesthetic features.

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: Authentication of internal movement components requires independent verification
  • Research required: Functionality of the alarm mechanism and gear train has not been confirmed
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