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Greubel Forsey Double Tourbillon 30-Degrees Technique Sapphire watch

Every Knockoff Watches Wholesale story tagged Greubel Forsey Double Tourbillon 30-Degrees Technique Sapphire watch.
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Material Innovation in Watchmaking: Sapphire
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Material Innovation in Watchmaking: Sapphire

We're taking a look at innovative materials in watchmaking. Today's topic? Sapphire and how it has shaped watch designs in recent years.
By Adrienne Faurote  ·  July 5, 2017
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