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How a Timegrapher Works (Beginner Guide) | Amplitude, Beat Error, VPH Explained

Name: How a Timegrapher Works (Beginner Guide) | Amplitude, Beat Error, VPH Explained
Uploaded: 2026-03-12T07:37:32+00:00
Duration: 9 min 36 s

Paulo Orquillo

If you're new to mechanical watches, a timegrapher can look confusing. Numbers, graphs, ticking sounds, and terms like amplitude, beat error, lift angle, and VPH.

In this video I break down how a timegrapher actually works in simple terms using the WeiShi 1900 timegrapher. This beginner-friendly guide explains what the machine is listening to and how watchmakers use it to diagnose a movement.

Topics covered in this video:

• What a timegrapher actually measures

• Vibrations Per Hour (VPH) / Beat Rate

• Rate (seconds per day)

• Amplitude explained using a balance wheel model

• Beat Error and what it means

• Lift Angle and why it matters

• How to read the timegrapher graph

• Overview of the buttons and settings on the WeiShi 1900

I also use a 3D movement model to visually explain amplitude and lift angle so it's easier to understand how the escapement works.

This video is aimed at beginner watchmakers, collectors, and anyone learning mechanical watch regulation.

If you're getting into watch repair or regulation, understanding a timegrapher is one of the most useful skills to learn.