Engraved egg-shaped watch · France (museum classification)
Denis Martinot engraved egg watch
Partially verifiedCleveland's record identifies an Engraved Egg Watch designed by Denis Martinot, with decoration attributed to Theodor de Bry. The qualification belongs to the decoration; it should not be silently removed.
Technical facts
- Collection number
- 1929.994
- Materials
- Silver, steel and rock crystal
- Overall dimensions
- 7.4 × 4.8 × 3.2 cm, as catalogued
- Design attribution
- Denis Martinot — designed by
- Decoration attribution
- Theodor de Bry — attributed to
Historical significance
- Cleveland's record identifies an Engraved Egg Watch designed by Denis Martinot, with decoration attributed to Theodor de Bry. The qualification belongs to the decoration; it should not be silently removed.
- The museum lists silver, steel and rock crystal. The reviewed photograph shows the engraved exterior, not a complete inspection of its movement or a materials analysis.
- Its shaped case offers a specific late-sixteenth-century example for studying portable timekeepers as both technical objects and decorated metalwork. It is not proof of a general production pattern or an invention date.
- Record the collection number when comparing this watch with other egg-shaped watches. An exterior resemblance alone cannot establish that a later auction listing describes this exact object.
- No escapement specification, running condition or current-gallery location is asserted here because those details were not established by the retrieved record.
Photographs

Photographs are illustrative examples of the type, not necessarily the exact object described. Verify details against the source file page.
Sources & references
- https://www.clevelandart.org/art/1929.994
- https://openaccess-api.clevelandart.org/api/artworks/?accession_number=1929.994
Where sources disagree, the disagreement is stated rather than resolved silently.