Christiaan Huygens

Tokyo Retailer Shellman Celebrates Christiaan Huygens

A two-week exhibition marking 350 years of the hairspring.

Who Invented the Hairspring?

The tale of Hooke vs. Huygens that began 350 years ago.

Settling the 300-Year Old Dispute – Who Invented the Balance Spring?

The irascible Robert Hooke and his long-lost notes.
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