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The Encyclopedia of Horology

Wristwatch · Quartz wristwatch

Patek Philippe Ellipse Ref. 3931

Partially verified

This Patek Philippe Ellipse, reference 3931, is a men's quartz-powered wristwatch dating to 1986. The timepiece is constructed with a stainless steel case measuring 30mm by 34mm, featuring a distinctive oval shape. It is equipped with an in-house Patek E23-C quartz movement. The watch displays a white porcelain dial that includes a co-signed retailer mark for Beyer and a date aperture at the three o'clock position. The dial layout utilizes Roman numerals and an outer railway minute track. The watch is fitted with its original crocodile leather strap and a stainless steel Patek Philippe buckle. The object is accompanied by an 'Extract From The Archive' issued by the manufacturer.

Close-up view of the 1986 Patek Philippe Ellipse Ref. 3931 with white porcelain dial signed by retailer Beyer.
Close-up view of the 1986 Patek Philippe Ellipse Ref. 3931 with white porcelain dial signed by retailer Beyer. — Craft & Tailored. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
craftandtailored.com
Category
Wristwatch · Quartz wristwatch
Maker / attribution
Patek Philippe
Reference
3931
Catalogue / lot identifier
PP3931SSB
Source-reported date
1986
Source-reported place
Switzerland
Source-reported serial
1.58X.XXX/2.83X.XXX

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial

The watch is housed in a stainless steel case measuring 30mm by 34mm, which incorporates a textured bezel. The sapphire crystal is reported to be free of blemishes, and the case itself shows minimal wear. The original crown is signed with the Patek Philippe branding.

The dial is rendered in white porcelain and features a co-signed 'Beyer' mark. It is configured with an outer railway-style minute track and black Roman numeral indices. A date aperture is situated at the three o'clock position, and the hands are in original condition.

Evidence for this section
  • “The excellent stainless steel case shows very little wear from use.”
  • “The stunning white porcelain "Beyer" cosigned dial is in excellent original condition.”

Movement and Accessories

The timepiece is operated by the Patek Philippe E23-C quartz movement, which is produced in-house by the manufacturer. The auction description reports that the watch is currently keeping time and functioning as intended.

The watch is accompanied by an 'Extract From The Archive' documentation. It is secured to the wrist via an original Patek Philippe crocodile leather strap and a signed stainless steel buckle.

Evidence for this section
  • “This watch is powered by the impressive Patek E23-C inhouse quartz movement.”
  • “The watch comes with Patek Philippe Extract From the Archive.”

Provenance and Condition

The provided documentation identifies the watch as a 1986 manufacture. The auction description reports that the piece remains in fully original condition, noting that the service history beyond its current status is unknown to the vendor.

The watch is identified by the stock number PP3931SSB and includes specific serial ranges as provided in the manufacturer's registry information.

The auction description reports that the watch is keeping time and running flawlessly, extended service history is unknown.

Evidence for this section
  • “This Ref. 3931 remains fully original”
  • “The watch is keeping time and running flawlessly, extended service history is unknown.”

Open research questions

  • What is the complete, unobscured serial number of the movement and case?
  • Can the specific production volume of the stainless steel Ref. 3931 be determined from Patek Philippe archives?

Source evidence

Recorded claims and source quotations for Patek Philippe Ellipse Ref. 3931
FieldSource-reported valueSource quotation
BrandPatek Philippe“Brand Patek Philippe”
Model3931“Model 3931”
MovementPatek E23-C“This watch is powered by the impressive Patek E23-C inhouse quartz movement.”
DialWhite porcelain with Beyer signature“beautiful and untouched white porcelain dial, that is cosigned with the retailer Beyer.”
MaterialStainless steel“Material Stainless Steel”
Year of manufacture1986“1986 Stainless Steel Patek Philippe Ellipse (Ref. 3931) "Beyer" Cosigned Dial W/ Archive”
Dimensions30mm x 34mm“Millimeters 30X34”

Visible details

  • Case features a textured bezel
  • Date window located at the 3 o'clock position
  • Beyer retailer signature present on the dial
  • Signed Patek Philippe crown

Research qualifications

  • Extended service history is unknown
  • The exact serial number is partially obscured in the source data

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

ساعت مچی Patek Philippe مدل Ellipse رفرنس 3931 با صفحه امضاشده Beyer سال ۱۹۸۶

Reviewed 2026-11-02 · Record a50994cd93

Terms in this record

Glossary explanations for terms named in this object’s record.

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