Micro-machined jewel counter-pivots stones for precision mechanical watches
pierhorgasser
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pierhorgasser
Ongoing, First published Mar 27, 2023
ballbearingshorlogerieindustrialmanufacturersmedicalpierrerubysapphiresyntheticusinage
Pierhor SA was founded in 1899 and is the oldest Swiss jewel-bearing factory still in operation. Since inception, it has specialised in ruby production, supplying primarily major Swiss watchmaking brands.

Gasser-Ravussin SA was founded in 1927 as a pioneer in ruby and sapphire laser machining. It also specialised in jewel-bearing production for the watchmaking sector and diversified into non-watchmaking activities.
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ballbearingshorlogerieindustrialmanufacturersmedicalpierrerubysapphiresyntheticusinage
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Cate's Writer Room

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