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Time Regulating Guides

Pendulum Length Regulation

Pendulum length regulation is the primary method used to adjust timekeeping in mechanical clocks. This guide explains how rating nut adjustments raise or lower the pendulum bob to control clock speed, outlines proper regulation procedures, highlights common mistakes, and identifies when professional service is required. Suitable for mantel, wall, longcase, and regulator clocks.

A vintage metal alarm clock with a round face, no visible hands, and a black strap attached to a metal clip, lying on a wooden surface.
Balance Wheel Regulation

Balance wheel regulation is used on clocks that do not rely on pendulums for timekeeping. This guide explains how platform escapements and balance assemblies control speed, how to identify balance-regulated clocks, and how to make safe, precise regulator adjustments while avoiding over-adjustment and mechanical damage.

Close-up of a mechanical timer and control knob inside a metallic appliance, likely a toaster or oven, with markings and a diagram on the side.