Watchatlas

Cortebert Watch Co

Cortébert, Switzerland · Est. 1862

Founded by Numa Jeannin-Simonin

Cortebert Watch Co was a Swiss manufacturer from the village of Cortébert in the Bernese Jura, known for producing robust railway chronometers supplied to state railways across Europe and the Middle East. Absorbed by ETA in the 1960s.

Founded
1862
Headquarters
Cortébert, Switzerland
Group
Swatch Group
Price Segment
Mid
Status
Defunct

Ceased: 1970

Cortebert was acquired by ETA SA in the 1960s, and the brand name was retired as production was folded into ETA's industrial movement manufacturing.

Cortébert's railway chronometers kept Turkish and Yugoslav trains on time for decades — then ETA swallowed the factory whole.

Key Collections

  • Railway Chronometer — Precision timekeepers supplied to state railways including Turkish State Railways (TCDD), Swiss Federal Railways, and various European and Middle Eastern railway operators, renowned for their accuracy and durability.
  • Grand Prix — Elegant dress watches that showcased Cortebert's ability to produce refined timepieces alongside their industrial chronometers, featuring clean dials and reliable movements.
  • Military Watches — Robust field watches supplied to various armed forces during the early-to-mid twentieth century, valued for their legibility and dependable movements.

Timeline

  • 1862 — Numa Jeannin-Simonin establishes a watch manufacturing operation in the village of Cortébert in the Bernese Jura.
  • 1880 — The company is reorganised as Cortebert Watch Co and begins expanding production of precision movements.
  • 1920 — Cortebert secures major contracts to supply railway chronometers to Turkish State Railways and other European railway operators.
  • 1932 — The firm joins Ebauches SA, the Swiss movement manufacturing conglomerate, whilst retaining its brand identity.
  • 1960 — Cortebert is absorbed into ETA SA as part of industry consolidation; movement production continues but branded watch output declines.
  • 1970 — The Cortebert brand name is officially retired as operations are fully integrated into ETA's industrial movement manufacturing.

Frequently Asked Questions about Cortebert Watch Co

When did Cortebert stop making watches?
Cortebert ceased producing branded watches around 1970 when the company was fully absorbed into ETA SA, though the manufacturing facilities continued producing movements under the ETA name.
Are Cortebert watches still valuable?
Vintage Cortebert watches, particularly railway chronometers and military pieces, are sought after by collectors for their historical significance and movement quality. Values vary considerably based on condition and provenance, with railway-issued examples commanding premiums.
Can I still buy a Cortebert watch today?
Cortebert watches are only available on the vintage market, through specialist dealers, auction houses, and private sales. The brand has not been revived for new production.
Why were Cortebert railway watches so highly regarded?
Cortebert developed a reputation for producing exceptionally accurate and robust chronometers that met the stringent timing requirements of railway operations. Their movements, particularly the Calibre 616 family, were prized for reliability in demanding conditions.
What is the connection between Cortebert and ETA?
Cortebert joined Ebauches SA in 1932 and was eventually absorbed into ETA SA during the 1960s consolidation of the Swiss watch industry. The Cortebert name was retired, but the manufacturing expertise contributed to ETA's movement production.

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