Watches + Dictionary = Watchionary
Jaquet-Droz Grande Seconde Quantième,

This process is used to create a textured, matte finish on the surface of metal watch components. It involves using a rotary tool with an abrasive surface to lightly abrade the surface of the metal, creating a pattern of fine, parallel lines. This process is often used to finish the case, the bracelet or the bezel of a watch as well as its dial or other visible parts of the movement.

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