circa 1900, 50mm, high polish with "OP" initials on case, marked "393187, 18k, 0.750, 143", yellow gold, tachometer dial, movement 27660, stem wind, 59.4 g

Provenance: Sotheby's, New York, February 1997; Property from an Important Chicago Collection

Note: No warranty is given or implied as to the timekeeping accuracy, mechanical function, or completeness of any watch or clock. Movements have not been tested and may require servicing or repair. We do not guarantee authenticity of individual components, such as dials, movements, or cases. 

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