Clock Gear (unconventional)
A clock with 13:1 gear ratio 60min/1h is always when both arrows align (also provide a normal 12:1 option)
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updated September 30, 2022
Description
PDFminutes are indicated by the big hand on the outer minute ring.
Hours are indicated by the window in the little hand (big arrow) window as number on the hour disc (which is rotating counter clockwise)
Tags
Model origin
The author marked this model as their own original creation.
