Mechanisms — horology

Recent Blogs

Wheel Train diagram
Wheel Train Mechanism Explained: How It Works, Gear Ratio Formula, Parts, and Horology Uses
Explore three ideal gear-train stages. Compare the combined speed multiplier, output rate, revolution time and lossless torque ratio.
Tourbillon diagram - how do they work
Tourbillon: Rotating Cage and Timing Calculator
Explore the rotating cage and convert balance frequency, cage period and elapsed time into timing quantities. The calculator does not predict watch accuracy.
Mainspring diagram
Mainspring: Ideal Elastic-Strip Bending Estimate
Explore a mainspring barrel and arbor. Compare ideal strip torque, winding angle and stored energy under a uniform elastic-bending assumption.
Hairspring diagram
Hairspring: Balance Frequency and Energy Calculator | FIRGELLI
Compare ideal hairspring frequency, beats per hour, spring energy and rate change from stiffness trim. Includes a slowed balance-and-spring animation.
Foliot diagram
Foliot Mechanism Explained: Verge Escapement, Diagram, Parts, and Tick Period Formula
The foliot is the earliest mechanical clock regulator. See how horologists use its inertia and verge escapement to control timekeeping in tower clocks.
Barrel (horology) diagram
Barrel (horology) Explained: Mechanism, Parts, Diagram, and Mainspring Power Reserve
How a watch barrel stores mainspring energy, drives the gear train, and sets power reserve. Real numbers, design tradeoffs, and worked example for watchmakers.
Balance Wheel diagram
Balance Wheel Mechanism: How It Works, Hairspring Oscillator Diagram, Parts and Formula
Explore a balance wheel and hairspring as an ideal torsional oscillator. Calculate period, beats per hour, stiffness-to-inertia ratio and peak angular speed.