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The Encyclopedia of Horology

Wristwatch · Chronograph

Wittnauer Professional Chronograph Reference 239T

Partially verified

This vintage Swiss-made Wittnauer Professional Chronograph wristwatch, reference 239T, dates to the 1960s according to the source. The source reports it is powered by a manual-winding Wittnauer caliber 14Y, based on the Landeron 248 movement with 17 jewels, operating at 18,000 vibrations per hour. The 41 mm stainless steel case is fitted with a bidirectional rotating bezel with a red-toned insert, pump chronograph pushers, and a multi-link stainless steel bracelet. The black dial features a two-register chronograph layout with running small seconds and a 30-minute counter, framed by an outer tachymeter scale.

Front view of Wittnauer Professional Chronograph reference 239T
Front view of Wittnauer Professional Chronograph reference 239T — SECOND HAND HOROLOGY. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
secondhandhorology.com
Category
Wristwatch · Chronograph
Maker / attribution
Wittnauer
Reference
239T
Catalogue / lot identifier
WA-7370
Source-reported date
1960s
Country
Switzerland

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

Visual Identity and Dial Layout

The watch presents a black dial arranged in a two-register chronograph layout. The source notes recessed sub-dials for running seconds and chronograph minutes, complemented by applied hour markers, luminous hands and markers, and an outer tachymeter scale.

Dial text visible in the record includes 'WITTNAUER Genève' beneath the 12 o'clock marker and 'PROFESSIONAL Chronograph' in the lower register. The dial is bordered by an external rotating bezel featuring a faded red or burgundy elapsed-time insert with white Arabic numerals and a top inverted triangle.

Evidence for this section
  • “Black dial with dual registers at 3 and 9 o'clock, signed 'WITTNAUER Genève' and 'PROFESSIONAL Chronograph'.”
  • “two recessed sub-dials for running seconds and chronograph minutes”
  • “Faded red/burgundy elapsed-time bezel insert with white Arabic numerals and an inverted triangle marker at 12 o'clock.”

Case Construction and Dimensions

The round stainless steel case is listed by the source at 41 mm in diameter, or 44 mm when measured with the push-pull crown. It features reported dimensions of 46.7 mm lug to lug, 14.2 mm thickness, and a 20 mm lug width.

Visual observations note dual pump-style chronograph pushers alongside a fluted winding crown, paired with a straight-end multi-row link bracelet. The source further specifies an acrylic crystal, a screw-down case back, and case back markings reading 'Wittnauer Watch Co. INC Swiss 2391 7004A'.

Evidence for this section
  • “Case Lug to Lug: 46.7”
  • “Case Thickness: 14.2”
  • “Dual pump-style chronograph pushers and a fluted winding crown.”
  • “Case Back Markings: Wittnauer Watch Co. INC Swiss 2391 7004A”
  • “Crystal: Acrylic”

Reported Movement and Technical Characteristics

According to the source listing, the watch is driven by a manual-winding Wittnauer caliber 14Y based on the Landeron 248 movement. The caliber is reported to feature 17 jewels, a cam-switching mechanism, central chronograph seconds, a 30-minute counter, and a running small-seconds sub-dial.

The mechanism is described by the seller as operating at an oscillation frequency of 18,000 vph with an approximate power reserve of 41 hours. Because the movement is not visible in the provided exterior photograph, these technical details rely strictly on source statements.

Evidence for this section
  • “Powered by the manual-winding Wittnauer caliber 14Y, this Swiss-made timepiece is based on Landeron 248 movement, featuring 17 jewels, a cam-switching mechanism”
  • “Frequency: 18,000 vph”
  • “Approx. 41 hours”

Open research questions

  • What accounts for the distinction between the model reference listing of 239T and the internal case back stamping cited as '2391 7004A'?
  • Can direct inspection of the uncased movement confirm the caliber 14Y Landeron 248 base and its jewel count?
  • Does the multi-link stainless steel bracelet carry original Wittnauer branding or end-link reference numbers?

Source evidence

Recorded claims and source quotations for Wittnauer Professional Chronograph Reference 239T
FieldSource-reported valueSource quotation
Reference239T“reference 239T, dating to the 1960s”
CaliberWittnauer 14Y (based on Landeron 248)“Wittnauer caliber 14Y, this Swiss-made timepiece is based on Landeron 248 movement”
Jewels17“featuring 17 jewels”
Case Size41mm“Housed in a 41mm stainless steel case”
Case Back MarkingsWittnauer Watch Co. INC Swiss 2391 7004A“Case Back Markings: Wittnauer Watch Co. INC Swiss 2391 7004A”
Case Thickness14.2 mm“Case Thickness: 14.2”
Lug-to-Lug Distance46.7 mm“Case Lug to Lug: 46.7”
Frequency18,000 vph“Frequency: 18,000 vph”
Reported Power ReserveApprox. 41 hours“Power Reserve: Approx. 41 hours”

Visible details

  • Black dial with dual registers at 3 and 9 o'clock, signed 'WITTNAUER Genève' and 'PROFESSIONAL Chronograph'.
  • Faded red/burgundy elapsed-time bezel insert with white Arabic numerals and an inverted triangle marker at 12 o'clock.
  • Stainless steel case with straight-end multi-row beads-of-rice or jubilee-style link bracelet.
  • Dual pump-style chronograph pushers and a fluted winding crown.

Research qualifications

  • Internal movement and case back inscriptions are not visible in the photograph; caliber, jewel count, and internal reference markings are based entirely on source descriptions.
  • Case back marking cited by the source reads '2391 7004A', while model reference is listed as 239T.

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

Consulted source

Vintage Wittnauer Professional Chronograph Watch 239T Cal. 14Y 17 Jewe – SECOND HAND HOROLOGY

Reviewed 2026-10-21 · Record fa262c05d3

Terms in this record

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

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