====== Pierres Holding ======
**Pierres Holding SA** was a [[watch group]] within [[ASUAG]] focused on functional [[jewel]]s ("Pierres"). Pierres Holding was active from the 1960s through [[1983]] and was based in [[Bienne]] and for a time was headed by [[Renggli, Pierre|Pierre Renggli]].

Pierres Holding SA was formed in the 1960s to bring together watch jewel technology suppliers within ASUAG. It was structured as a general [[holding company]] with four key "centers" based on geography 

  * Centre [[La Chaux-de-Fonds]]
    * [[Méroz Pierres]], La Chaux-de-Fonds
    * [[Munari]], [[Le Landeron]]
    * [[Tanner]], [[Le Landeron]]
    * [[Micropietra]], Meina Italy
    * [[Krugel]], [[Travers]]
    * [[Jaman]], [[Saint-Sulpice]]
    * [[S. Kohler]], [[La Chaux-de-Fonds]]
    * [[R. Audemars Fils]], [[Lugano]] ([[1970]]-July 1, [[1978]], sold to the Audemars family) - Specialty [[jewel]]s and components
  * Centre [[Les Brenets]]
    * [[Seitz]], [[Les Brenets]] and [[Granges]]
    * [[Rochat Frères]], [[Les Charbonnières]]
    * [[Dépraz]], [[Le Brassus]]
    * [[Thomae]], [[Cugy]]
  * Centre [[Pieterlen]]
    * [[Litos]], [[Pieterlen]]
    * [[Flück]], [[Pieterlen]]
    * [[Lüthy]], [[Pieterlen]]
    * [[Cramatte]], [[Courtemaîche]]
  * Centre [[Thoune]]
    * [[Watch Stones Co.]], [[Thoune]]
    * [[Baechler]], [[Bienne]]
    * [[Romelli]], [[Balerna]]
    * [[Rubistar]], [[Thoune]]


{{tag>Defunct_watch_and_luxury_trusts ASUAG}}