Recent Blogs
Pin-geared Watch Stop Mechanism: How It Works, Parts, Diagram, and Hacking Seconds Explained
Pin-geared watch stop mechanism explained — how watchmakers freeze the balance for hacking seconds, with tolerances, formulas and real calibre examples.
Double Three-legged Gravity Escapement: How Denison's Turret Clock Mechanism Works
How the double three-legged gravity escapement works, with formulas, a Big Ben-style worked example, and tradeoffs against deadbeat and pin-wheel escapements.
Watch Train Mechanism Explained: Going Train Gear Ratios, Parts, Formula & Calculator
Watch train explained: the gear chain that steps mainspring torque down to the balance wheel in mechanical watches, with ratios, examples, and design tradeoffs.
Watch Stop Mechanism: How the Hacking Lever Works, Parts, Diagram and Calculator
How a watch stop mechanism halts the balance wheel when you pull the crown — design rules, hacking lever geometry, and failure modes for watchmakers.
Watch Regulator Mechanism: How Curb Pins Tune Hairspring Rate, Parts and Diagram Explained
Watch regulator explained — how the regulator lever shifts the hairspring's effective length to fine-tune rate, with worked examples for watchmakers and restorers.
Universal Sun Dial Mechanism: How It Works, Parts, Latitude Hinge & Equinoctial Ring Explained
Build or restore a Universal Sun Dial with the right gnomon angle, latitude scale, and hour-line geometry — used by surveyors, navigators, and horologists.
Two Escape-wheel Pallet Escapement (side): How It Works, Parts, Diagram and Uses Explained
Two escape-wheel pallet escapement explained — how the side-mounted twin wheels split impulse and locking, with formulas, worked example, and restoration applications.
Two Escape-wheel Pallet Escapement (front): How It Works, Parts, Diagram & Formula Explained
Two Escape-wheel Pallet Escapement explained — how the front-mounted twin wheels share impulse, plus formulas, tolerances and worked examples for clockmakers.
Three-toothed Escapement Mechanism Explained: How It Works, Diagram, Parts, Formula, and Uses
Three-toothed Escapement explained — how the tri-toothed pendulum escapement times skeleton clocks, design rules, and worked accuracy math for clockmakers.
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.