Recent Blogs
Three-legged Pendulum Escapement Explained: How It Works, Parts, Diagram and Uses
Three-legged pendulum escapement explained — how Lord Grimthorpe's gravity escapement isolates the pendulum from train friction in turret clocks like Big Ben.
Stud Escapement Mechanism Explained: How It Works, Parts, Diagram and Tower Clock Uses
Stud Escapement explained — how this large-clock escape mechanism regulates turret and tower clocks, with formulas, worked examples, and real horological applications.
Stem-winding Movement Explained: Keyless Works Mechanism, Parts, and Crown-Turn Formula
Stem-winding movement explained — how the crown, clutch, and winding pinion drive a watch mainspring, with formulas, tolerances, and worked examples for watchmakers.
Star-wheel Escapement Mechanism: How It Works, Parts, Diagram and Formula Explained
Star-wheel escapement explained: how the mechanism gates impulse in clockwork, the geometry, real workshop examples, formulas, and design tradeoffs.
Single-pin Pendulum Escapement: How It Works, Parts, Geometry and Uses Explained
Single-pin pendulum escapement explained — how the one-pin escape wheel impulses a pendulum, where horologists use it, and how to size the geometry for low...
Pendulum Escapement Mechanism: How It Works, Parts, Diagram, and Formula Explained
How a Pendulum Escapement works, with formulas, worked examples, and tradeoffs against verge and gravity escapements for clockmakers and restorers.
Pendulum (general) Mechanism Explained: How It Works, Parts, Formula & Diagram
How a pendulum works, the period formula, and real horological applications — with worked examples, tolerances, and diagnostic checks for clock builders.
Mudge Gravity Escapement Mechanism Explained: How It Works, Parts, Diagram & Turret Clock Uses
Mudge gravity escapement explained for clockmakers and restorers — how the locking arms, lifting pallets, and remontoire action deliver constant impulse to a pendulum.
Modified Three-legged with Stopping Teeth: How This Gravity Escapement Works, Parts & Diagram
How the modified three-legged gravity escapement with stopping teeth works in turret clocks, with formulas, tolerances, and a worked Trinity College Cambridge example.
Mercurial Compensation Pendulum Explained: How It Works, Parts, Formula and Uses
How a mercurial compensation pendulum keeps a precision regulator on time across temperature swings — design rules, formulas and a real observatory build.
Lever Chronometer Escapement: How It Works, Parts, Diagram, and Uses in Pocket Chronometers
How the lever chronometer escapement works in marine and pocket chronometers — detent geometry, impulse timing, and tuning rules used by horologists.
Pin-wheel Escapement Mechanism Explained: How It Works, Parts, Diagram, Formula and Uses
How the Pin-wheel Escapement works, with formulas, tolerances, and real clockmaking examples. Compare it to deadbeat and anchor escapements for tower clocks.
Lever Escapement Mechanism: How It Works, Parts, Diagram, Animation and Watch Beat Calculator
How the Lever Escapement works in mechanical watches — beat geometry, lift angle, escape wheel tooth count, and the impulse path used by Rolex, Omega...
Hook-tooth Escapement Mechanism Explained: How It Works, Parts, Diagram, and Uses in Antique Clocks
Hook-tooth escapement explained — how the hooked tooth profile delivers impulse, where it's used in early clockwork, and how to size one for restoration work.
Harrison's Going-barrel Mechanism: How It Works, Parts, Diagram, and Uses Explained
Harrison's going-barrel keeps a clock running while you wind it. Learn how the maintaining-power click works, with worked torque math for restorers and clockmakers.
Harrison Winding Device Mechanism: How It Works, Diagram, Parts, Formula and Uses Explained
Harrison's maintaining power winding device keeps a precision clock running while you wind it. Used in marine chronometers and longcase regulators since 1722.
Geared Watch Stop Mechanism: How It Works, Parts, Diagram & Hacking Lever Uses Explained
Geared watch stop mechanisms halt a movement at a precise tooth count for hacking, setup, and rate testing. How they work, formulas, and examples for...
Fusee Chain and Spring Drum Mechanism: How It Works, Parts, Formula, and Diagram Explained
Fusee Chain and Spring Drum explained — how horologists use a tapered cone and chain to equalise mainspring torque across an 8-day run. Diagram, formulas,...
Fusee (form) Mechanism: How It Works, Parts, Diagram, and Uses in Watches and Chronometers
How a Fusee equalises mainspring torque in pocket watches and marine chronometers — geometry, formula, worked example, and selection guide for restorers.
Mean Time Sun Dial Mechanism Explained: How It Works, Parts, Diagram, and Equation of Time
Mean Time Sun Dial explained — how the equation of time correction works, gnomon geometry, and real applications in observatories, gardens, and survey work.
Endless-chain Maintaining Power (clock) Mechanism Explained: Parts, How It Works, and Uses
Endless-chain maintaining power keeps a weight-driven clock running while you wind it. Learn how Huygens' 1659 mechanism works, with formulas and a regulator example.
Endless Cord-winding Device for Clocks: How It Works, Diagram, Parts and Maintaining Power Explained
How the endless cord-winding device for clocks (Huygens' loop) keeps weight-driven clocks running while you wind them. Theory, design rules, and worked example.
Electro-magnetic Clock Pendulum Mechanism: How Hipp Toggle and Synchronome Impulse Drives Work
How an electro-magnetic clock pendulum works — coil impulse timing, Hipp toggle, and rate stability for precision regulators in observatories and railways.
Electric Winding Device Mechanism: How It Works, Diagram, Parts, Calculator and Uses Explained
Electric winding devices keep mainspring and weight-driven clocks running indefinitely. Learn how they work, where they're used, and how to size one for horology builds.
Electric Time Clock Mechanism Explained: How It Works, Parts, Diagram, and Uses
How an electric time clock works — synchronous motors, impulse coils, master-slave systems, and real factory and railway examples with timing math.