Académie Horlogère des Créateurs Indépendants


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Patek Philippe

Perpetual Calendar Chronograph in Platinum with Diamonds and Extract


Patek Philippe’s perpetual calendar chronographs are highly coveted, as they are considered valuable collector’s classics. The magnificent combination of complications executed with Patek Philippe’s impeccable technical workmanship and the exquisite artisanal finishing of the movement parts, the high level of which is confirmed by the presence of the Poinçon de Genève, as well as the harmonious design of the dial undoubtedly make this lot extremely attractive. Production of the 3970, which is divided into four series, began in 1986 and continued until 2004. This watch with platinum case, obelisk hands, diamond indices, sapphire caseback and double folding clasp belongs to the fourth series with an estimated total production of 2,000 pieces for all versions. One of the reasons why this reference is so interesting is the fact that Patek Philippe began using the basic Lemania 2320 chronograph movement, which is one of the best in its class and, after a revision by Patek Philippe, is the basis for the CH 27-70 Q caliber of this watch.


Case Platinum case 950/1000 with a sapphire caseback, 2 round chronograph pushers at 2 & 4 o'clock, crown at 3 o'clock
Strap Original black Alligator leather strap, with a original platinum folding clasp
Dial Black dial with applied diamond indices & white gold obelisque hands, 2 black sub-dials, day & month indication at 12 o'clock, moon phase & date indication at 6 o'clock, minute & leap year indication at 3 o'clock, 24 hour indication at 9 o'clock
Movement Rhodium-plated hand-wound movement, with a column wheel chronograph, perpetual calendar & moon phase functions
D= 36.5mm


Case: Good, signs of wear
Strap: Good, sign of wear
Dial: Mint condition
Movement: All functions working properly
Amplitude (Dial on top/Lift angle 52): Approx 340°
Accuracy (Dial on top): Approx +3 sec/day
Box: Yes
Extract from archives: Yes


We offer worldwide delivery on all of our watches.

If ordering from Switzerland or Europe, your watch will be sent the same working week. The courier will depend on the value of the watch, with all watches delivered the next working week.

If ordering from outside Europe, delivery will depend on the choice of courier and destination.

You can cancel your order without giving any reason, within 14 days from the day the watch has been delivered to you.


All of our pre-owned watches have undergone thorough mechanical inspections, including being ultrasonically cleaned, serviced and resealed if appropriate and tested for at least four days, to ensure they meet our highest timekeeping standards.

Our pre-owned and vintage watches, unless stated otherwise, are covered by a full or a limited twenty-four month warranty. For example, due to their age, some vintage watches should not be subjected to the same conditions as when they were new.

All of our new watches are covered by the warranty from the original manufacturer. Please contact us for further information.

Please see our Terms & Conditions for further information.



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