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Secular Perpetual Calendar program wheel
printables · Engineering

Secular Perpetual Calendar program wheel

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by maxminh
19 Downloads
8 Likes
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mechanism perpetual
A recreation of the secular perpetual calendar program wheel designed by IWC, its 'Portugieser Eternal Calendar'.
Category
Engineering
Source
Printables
Published
13.02.2026
Updated
13.02.2026

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