Moritz Grossmann’s Benu Tourbillon Earns a Patent
Introduced in 2013, the Benu Tourbillon with a flying three-minute tourbillon incorporates several developments conceived by Moritz Grossmann's watchmakers for which utility model or patent applications were filed: the V-shaped design of the balance bridge (utility model registered), the stop seconds mechanism with a hair brush (patent pending) and the double minute display (patent pending). In January 2018, the double...
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