Interesting to see why seiko calls their automatic line 21 jewels. | Hacker News

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		mattmoose21 on May 4, 2022 \| parent \| context \| favorite \| on: Mechanical Watch Interesting to see why seiko calls their automatic line 21 jewels.

tadzik_ on May 4, 2022 [–]

They don't call it that. "21 jewels" just describes the amount of rubies in the watch movement.

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