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Patek Philippe Perpetual Calendar Chronograph Reference 3970P-019

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

Introduced in 1986

Maker / issuer

Patek Philippe

The Patek Philippe Reference 3970P-019 is a manually wound perpetual calendar chronograph wristwatch measuring 37mm in diameter. The case is constructed from platinum and features a black dial with diamond indices and sword-shaped hands.

Complications include a perpetual calendar with day and month apertures located beneath 12 o'clock, a moonphase display, a date register, a leap year indicator, and a 24-hour indication. The watch is powered by a manually wound movement based on a Lemania ébauche, which undergoes re-engineering and hand-finishing at the Patek Philippe manufacture. It is presented on a black leather strap with a signed platinum deployant buckle.

The object is accompanied by an original box set and a Certificate of Origin. The reference succeeds the Reference 2499 and was produced for approximately two decades, remaining a representative example of the brand's traditional perpetual calendar chronograph designs.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Type
Perpetual calendar chronograph
Clasp
Platinum deployant buckle
Strap
Black leather
Reference
3970P-019
Case Diameter
37mm
Case Material
Platinum
Movement Base
Lemania ébauche
Place recorded
Switzerland
Winding Mechanism
Manually wound
Accompanying Items
Box and Certificate of Origin
Maker / attribution
Patek Philippe

Design

Case and Dial
The Reference 3970P-019 features a platinum case measuring 37mm in diameter. The design includes a circular bezel, faceted lugs, and traditional chronograph pushers located on the right side of the case flanking the winding crown. The black dial utilizes an information hierarchy that incorporates multiple complications. Day and month displays are visible through two rectangular apertures located beneath the 12 o'clock position. Diamond indices serve as hour markers, paired with sword-shaped hands. The lower portion of the dial features a sub-dial integrating the date register and moonphase aperture.
Design History
The Reference 3970 was introduced in 1986 as the successor to the Reference 2499. The series was produced for nearly twenty years. The watch is noted for maintaining a 37mm dimension, which aligns with the sizing of the original release. The movement and dial arrangement follow a design philosophy aimed at integrating perpetual calendar and chronograph functions within a restrained profile.
Visible features
• Black dial with diamond-set indices • Three-register dial layout with moonphase • Case features chronograph pushers at 2 and 4 o'clock • Black leather strap with deployant clasp
Movement and Finishing
The watch operates on a manually wound perpetual calendar chronograph caliber. The base of this movement is a Lemania ébauche, which has undergone technical modifications, finishing, and regulation performed by the Patek Philippe manufacture. Visible through the sapphire caseback, the movement displays various decorative techniques. These include Geneva stripes, hand-beveled bridges, and polished steel components. The assembly is intended to meet Geneva standards for horological finishing.

Identification

Reference
3970P-019
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.

Research required

  • Research required: Movement serial number is not provided in the source text
  • Research required: Specific production date of this individual unit is not stated
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