Enjoy Watches

Brand history & owner guide

Société suisse pour l’industrie horlogère (SSIH)

SSIH, Société suisse pour l’industrie horlogère, was the Swiss holding group formed around Omega and Tissot in 1930. 124

This profile covers the maker’s identity, history and documented work. A complete model catalogue is being researched separately.

At a glance

Subject
Historical Business 12
First documented date
1920s — Cooperation before incorporation 23
Documented work
Omega–Tissot industrial holding structure 12

Cooperation and group formation

SSIH, Société suisse pour l’industrie horlogère, was the Swiss holding group formed around Omega and Tissot in 1930. The 1974 trade profile describes cooperation developing during the 1920s before the holding structure; 1929 negotiations and 1930 formation should not be collapsed.

Paul-Émile Brandt appears in the Omega/SSIH leadership context; the secondary formation account lists him among the first directors, not as sole founder. 123

Portfolio and industrial coordination

The trade profile lists Lemania joining in 1932, Marc Favre in 1955, Rayville in 1961 and Lanco in 1965. Later additions in that profile include Aetos (1969), Economic Swiss Time (1971) and Hamilton-related business (dated there to 1972).

SSIH coordinated brands, services and research while using external case and bracelet suppliers; it was not one factory making all branded products. 2

From SSIH to Swatch Group without skipping the legal stages

SSIH combined with ASUAG in 1983; the successor ASUAG-SSIH took the SMH name in 1985 and Swatch Group in 1998. 14

Key dates

  1. 1920s

    Cooperation before incorporation

    The 1974 trade profile describes cooperation developing during the 1920s before the holding structure; 1929 negotiations and 1930 formation should not be collapsed. 23

  2. 1930

    Holding group formed

    SSIH, Société suisse pour l’industrie horlogère, was the Swiss holding group formed around Omega and Tissot in 1930. 123

  3. 1932

    Lemania joins

    The trade profile lists Lemania joining in 1932, Marc Favre in 1955, Rayville in 1961 and Lanco in 1965. 2

  4. 1955

    Marc Favre

    The trade profile lists Lemania joining in 1932, Marc Favre in 1955, Rayville in 1961 and Lanco in 1965. 2

  5. 1961

    Rayville

    The trade profile lists Lemania joining in 1932, Marc Favre in 1955, Rayville in 1961 and Lanco in 1965. 2

Ownership and continuity

SSIH combined with ASUAG in 1983; the successor ASUAG-SSIH took the SMH name in 1985 and Swatch Group in 1998. 14

Watchmakers and designers linked to Société suisse pour l’industrie horlogère (SSIH)

These people have a sourced relationship to this brand in the Enjoy Watches register. The label beside each name states the relationship recorded; it should not be read as a broader employment or ownership claim.

Identification and service

For an individual watch, record the complete reference, serial, dial, case, and movement markings and compare them with dated primary documentation.

A brand history cannot authenticate, appraise, or establish the provenance of a particular watch.

Evidence and limits

How the claims are supported
  1. verified fact

    SSIH, Société suisse pour l’industrie horlogère, was the Swiss holding group formed around Omega and Tissot in 1930.

  2. verified fact

    The 1974 trade profile describes cooperation developing during the 1920s before the holding structure; 1929 negotiations and 1930 formation should not be collapsed.

  3. verified fact

    Paul-Émile Brandt appears in the Omega/SSIH leadership context; the secondary formation account lists him among the first directors, not as sole founder.

  4. verified fact

    The trade profile lists Lemania joining in 1932, Marc Favre in 1955, Rayville in 1961 and Lanco in 1965.

  5. verified fact

    Later additions in that profile include Aetos (1969), Economic Swiss Time (1971) and Hamilton-related business (dated there to 1972).

  6. verified fact

    SSIH coordinated brands, services and research while using external case and bracelet suppliers; it was not one factory making all branded products.

  7. verified fact

    SSIH combined with ASUAG in 1983; the successor ASUAG-SSIH took the SMH name in 1985 and Swatch Group in 1998.

  8. verified fact

    The Metropolitan Museum’s Paul Emile Brandt authority identifies a decorative artist born in 1887; that same-name authority should not be silently attached to this industrialist.

  9. verified fact

    A specialist Hamilton history describes a 17% Aetos/SSIH interest in 1971 and acquisition of the remaining 83% in 1974, complicating the trade profile’s 1972 shorthand.

Known limits

  • The 1974 trade profile was read as a transcription, not an original scan; initial statutory records were not examined.
  • A 1972 reference is present, but the exact stakes and acquisition stages require transaction-level documentation.
  • This identity dossier is not a complete catalogue of every watch or reference.

Direct sources

  1. Swatch Group HistoryThe Swatch Group Ltd · official corporate history · accessed September 15, 2026

    Locator: Relevant passage identified in the supplied research record. First-party source; its statements remain attributed.

  2. SSIH/Sources — transcription of La Suisse Horlogère 03, 1974La Suisse Horlogère, transcribed by Grail Watch Wiki · historical trade document transcription · accessed September 15, 2026

    Locator: Relevant passage identified in the supplied research record. External source.

  3. SSIHGrail Watch Wiki · specialist secondary reference · accessed September 15, 2026

    Locator: Relevant passage identified in the supplied research record. External source.

  4. The man behind the SwatchSwiss Federal Department of Foreign Affairs · government historical profile · accessed September 15, 2026

    Locator: Relevant passage identified in the supplied research record. External source.

  5. Design for a Desk Lamp — Paul Emile BrandtThe Metropolitan Museum of Art · museum collection authority · accessed September 15, 2026

    Locator: Relevant passage identified in the supplied research record. External source.

  6. The Demise of the Hamilton Watch Company in Lancaster, PA and the Rise of the Swiss Owned Hamilton Watch CompanyVintage Hamilton · specialist document based history · accessed September 15, 2026

    Locator: Relevant passage identified in the supplied research record. External source.

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