Escapement for Pierre LeRoy's marine clock, 1766

While John Harrison was working in England, French clockmaker Pierre Le Roy was also inventing elements of the modern marine timekeeper. This is an illustration from 1766 depicts the improved escapement in Le Roy’s marine clock. 

Caption:
This illustration from 1766 depicts the improved escapement in Le Roy’s marine clock.
Type: Illustration
Credit: Smithsonian Institution Libraries
Origin: Smithsonian Institution
SIL33-224_001
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This illustration from 1766 depicts the improved escapement in Le Roy’s marine clock.