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World 2 · Tick and Tock: Escapements · 13 min · PRO

Why mechanical watches drift

The sources of error

PRO · Clockwork & Time

World 2: Tick and Tock: Escapements is part of PRO

The first world of Clockwork & Time is free. PRO opens the other 24 lessons in 6 worlds — simulations, quizzes and all.

  • Anatomy of a mechanical clock
  • The escapement
  • Balance wheel and hairspring
  • Ratios from tick to hand
  • Designing a train
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