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Patek Philippe. A fine 18K gold automatic perpetual calendar wristwatch with moon phase and sigma dial Patek Philippe. Belle montre bracelet en or jaune 18K (750) calendrier perpétuel, phases de lune et cadran sigma mouvement automatique Perpetual Calendar, Ref: 3940, Purchased 22nd November 1999 image 1
Patek Philippe. A fine 18K gold automatic perpetual calendar wristwatch with moon phase and sigma dial Patek Philippe. Belle montre bracelet en or jaune 18K (750) calendrier perpétuel, phases de lune et cadran sigma mouvement automatique Perpetual Calendar, Ref: 3940, Purchased 22nd November 1999 image 2
Lot 32Y

Patek Philippe. A fine 18K gold automatic perpetual calendar wristwatch with moon phase and sigma dial
Patek Philippe. Belle montre bracelet en or jaune 18K (750) calendrier perpétuel, phases de lune et cadran sigma mouvement automatique Perpetual Calendar, Ref: 3940, Purchased 22nd November 1999

Paris Fine Watches including an Exceptional Private Collection
17 October 2025, 14:00 CEST
Paris, Avenue Hoche

Sold for €53,740 inc. premium

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Patek Philippe. A fine 18K gold automatic perpetual calendar wristwatch with moon phase and sigma dial

Patek Philippe. Belle montre bracelet en or jaune 18K (750) calendrier perpétuel, phases de lune et cadran sigma mouvement automatique
Model: Perpetual Calendar
Reference: 3940
Date: Purchased 22nd November 1999
Movement: 27-jewel Cal.240Q automatic, adjusted to heat, cold, isochronism and 5 positions, stamped with the Seal of Geneva, Gyromax balance, 22K gold micro-rotor, No.774114
Dial: Silvered 'sigma', applied 18K gold pointed baton hour markers, dot outer minute markers, subsidiary dials at 3, 6 and 9 indicating day combined with 24-hour display, month combined with leap year indication, and phases of the moon combined with date, 18K gold dagger hands
Case: Brushed and polished round, solid snap on back, quick set buttons in the band at 6, 9 and 12, No.2936250
Strap/Bracelet: Patek Philippe black crocodile leather
Buckle/Clasp: Signed 18K gold buckle
Signed: Case, dial & movement
Size: 36mm
Weight: 59,90g
Accompaniments: Patek Philippe box, outer card, Certificate of Origin, Original invoice, spare 18K gold exhibition snap on back

Footnotes

In 1984 Patek Philippe launched the reference 3940, to replace the reference 3450. At the time, it was their slimmest automatic perpetual calendar. In the first year of production only 100 examples were manufactured but by 1985, the model went into standard production. It was discontinued in 2007, and replaced by the reference 5140.

Additional information

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ROLEX. A FINE AND RARE STAINLESS STEEL MANAUL WIND CHRONOGRAPH BRACELET WATCH Cosmograph Daytona 'ROC', Ref: 6240, c. 1968
M.A.D.EDITIONS. A STAINLESS STEEL AUTOMATIC SEMI-SKELETONIZED JUMPING HOUR WRISTWATCH WITH ROTATING BEADED ROTORRef: M.A.D.2 GREEN, c. 2025
PATEK PHILIPPPE. A FINE AND ATTRACTIVE 18K ROSE GOLD AUTOMATIC WORLD TIME WRISTWATCH WITH CLOISONNÉ ENAMEL DIAL World Time, Ref: 5131R-001, Purchased 3rd October, 2015
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