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The Encyclopedia of Horology

Pocket watch · Oval watch

Oval silver watch by Robert Grinkin

Partially verified

This oval watch is attributed to the London-based watchmaker Robert Grinkin (born after 1605, Clockmakers' Company 1632, died 1661) and is dated to circa 1640–50. The object is held by The Metropolitan Museum of Art. Its construction features a silver case housing a movement composed of gilded brass and steel, with parts of the steel work being blued. The overall dimensions of the watch are approximately 3.8 cm by 3.2 cm. The movement plate bears the engraved signature "Robert Grinkin Londini" and incorporates an open-work balance bridge decorated with floral motifs. The watch has a single hour hand and a silver dial with Roman numerals. This item was gifted to the museum by J. Pierpont Morgan in 1917.

The oval silver watch by Robert Grinkin, showing the dial and engraved case
The oval silver watch by Robert Grinkin, showing the dial and engraved case — The Metropolitan Museum of Art — Gift of J. Pierpont Morgan, 1917. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
orbiscollectibles.com
Category
Pocket watch · Oval watch
Maker / attribution
Robert Grinkin
Reference
Not recorded
Catalogue / lot identifier
17.190.1482
Source-reported date
ca. 1640–50
Source-reported place
British

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial

The case is equipped with a pendant and a small finial at the base, both of which are visible in the documented images.

The dial is also made of silver and displays Roman numerals arranged around a circular track. It utilizes a single hand for indicating the hour.

Evidence for this section
  • “Case: silver”
  • “Overall: 1 1/2 × 1 1/4 in. (3.8 × 3.2 cm)”

Movement and Construction

The interior of the watch contains a movement made primarily of gilded brass, with additional components fabricated from steel, including parts that have been finished in blue. The movement displays fine detail, particularly on the balance bridge, which features intricate floral scrollwork cut into the metal.

The movement plate is engraved with the maker's name and location, identifying the origin of the piece as London. The gear train and mechanical parts are arranged to fit the oval geometry of the case.

Evidence for this section
  • “Movement: gilded brass and steel, partly blued”

Provenance and Identification

This watch was part of a gift to The Metropolitan Museum of Art from J. Pierpont Morgan in 1917. It is catalogued under the accession number 17.190.1482 within the museum's permanent collection.

The attribution is supported by the maker's signature and the documented details provided by the museum. While the maker is clearly identified as Robert Grinkin, the museum record notes that further research is needed to verify the piece against broader specialist literature.

Evidence for this section
  • “Gift of J. Pierpont Morgan, 1917”
  • “17.190.1482”

Open research questions

  • Does the movement contain an original gut fusee or has it been converted to mainspring barrel?
  • Is there a hallmark on the silver case that can refine the date of manufacture?

Source evidence

Recorded claims and source quotations for Oval silver watch by Robert Grinkin
FieldSource-reported valueSource quotation
MakerRobert Grinkin“Watchmaker: Robert Grinkin (British, born after 1605, Clockmakers' Comapny 1632, died 1661)”
Dateca. 1640–50“ca. 1640–50”
MaterialsSilver case, gilded brass and steel movement“Case: silver; Movement: gilded brass and steel, partly blued”
Dimensions1 1/2 × 1 1/4 in. (3.8 × 3.2 cm)“Overall: 1 1/2 × 1 1/4 in. (3.8 × 3.2 cm)”
Museum Number17.190.1482“17.190.1482”

Visible details

  • The movement backplate is signed 'Robert Grinkin Londini'.
  • The balance bridge features floral open-work carving.
  • The watch is oval in shape with a single hand.
  • The movement contains components finished in blued steel.

Research qualifications

  • The exact year of manufacture within the range 1640–50 is not specified.
  • The extent of later restorations or part replacements has not been documented.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Watch, Robert Grinkin, ca. 1640–50

Reviewed 2026-11-02 · Record 4cea8e0e1c

Terms in this record

Glossary explanations for terms named in this object’s record.