181
Ref. 600
An exceptional and unique yellow gold keyless lever open-face minute repeating perpetual calendar watch with moonphases, black dial and Glucydur balance
Movement manufactured in 1925, first sold on 13th December 1935 and resold in 1938 when the case was upgraded to the current one
18k yellow gold
48mm Diameter
Case, dial and movement signed Patek Philippe
Estimate
CHF120,000 - 180,000
Sold for CHF185,000