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Why we're adding some gems or Jewels to the inside of a tonneau watch - Wishdoit Watches

Why we're adding some gems or Jewels to the inside of a tonneau watch

Wheels in a watch are constantly rotating while a watch is running. Wheels rotate on their pivots, which are thin posts on both ends of the pinion. This constant rotation causes friction, which in turn causes mechanical wear. To reduce friction and wear, the pivots rotate in synthetic sapphire jewels. Sapphire is used because of it’s hardness; only diamond is harder.