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Continuous precision: the patented constant-force escapement – A. Lange & Söhne

A. Lange & SöhneWatches & accessoriesWatch on YouTube

Jan 20, 2014 · 3K views

In this video

Format: Tutorial
Category: Watches
Season & event: SIHH 2014Event
Houses: A. Lange & Söhne
Products & items: watch

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