An 18ct gold lady's 'Instrumento No. Uno' automatic wristwatch, by De Grisogono
The square dial with applied Arabic numerals, subsidiary dial for second time zone and eccentric magnified date aperture to a broad brushed rectangular bezel, glazed display back secured by four screws, to stingray straps with maker's double deployant clasp, European Convention mark, case 33m wide
Dial, glazed back and buckle signed De Grisogono, case signed UNO / DF, movement signed Instrumento No. Uno, case no. 150/250-3 001900
An 18ct gold lady's 'Instrumento No. Uno' automatic wristwatch, by De Grisogono
The square dial with applied Arabic numerals, subsidiary dial for second time zone and eccentric magnified date aperture to a broad brushed rectangular bezel, glazed display back secured by four screws, to stingray straps with maker's double deployant clasp, European Convention mark, case 33m wide
Dial, glazed back and buckle signed De Grisogono, case signed UNO / DF, movement signed Instrumento No. Uno, case no. 150/250-3 001900
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