16 November 2009
Patek Philippe. A fine 18K gold openface perpetual calendar keyless lever watch with moon phases
Signed Patek Philippe, Genève, ref. 725/4, movement no. 931'978, case no. 332'427, manufactured in 1981
Cal. 17'''170 nickel-finished lever movement stamped twice with the Geneva seal, 18 jewels, swan neck regulator, silvered matte dial, applied gold baton and Arabic numerals, triple month, date and day window, subsidiary dial for moon phases and constant seconds, circular plain case, snap on back, case, dial and movement signed
46 mm. diam.
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With Patek Philippe Extract from the Archives confirming manufacture of the present watch in 1981 and its subsequent sale on 23 July 1986.
Reference 725/4 was in production from 1957 until the early 1980s and was available in yellow gold only.
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