400-Day Torsion Beat Calibrator – Precision Beat Adjustment – Attaches to Suspension Wire – For All 400-Day Clocks
This 400-Day torsion beat calibrator permanently attaches to the suspension wire of your 400-day clock, allowing for ultra-fine fork adjustments of 1/1000 of an inch or less. Designed to eliminate the trial-and-error process of saddle adjustments, it provides accurate and efficient beat tuning for improved clock performance.
The calibrator enhances power transmission, energy efficiency, and flutter resistance—regardless of variations in suspension spring strength, mainspring torque, or pendulum weight. With its high level of accuracy, it even acts as a diagnostic tool by ruling out beat error as a cause of clock stoppage. It cuts hours of adjustment down to minutes and allows clocks to be moved without losing the beat, greatly reducing customer returns.
Fits all 400-day torsion clocks. Minor modification may be required in rare cases. Includes detailed instructions and diagrams for installation and use.
Product Details
Type: Beat calibrator
Style: For 400-day torsion clocks
Function: Precision fork adjustment and beat setting
Compatibility: Fits all 400-day clocks (rare minor modification may be required)
Installation: Attaches to suspension wire
Includes: Calibrator, instructions, and diagrams
Condition: New item
Intended Use: For setting and maintaining beat in torsion clocks
Features & Uses
Ultra-Fine Tuning: Enables fork adjustments as small as 1/1000 inch
Efficient Setup: Replaces trial-and-error saddle adjustments
Diagnostic Tool: Confirms or rules out beat issues in troubleshooting
Enhanced Performance: Improves energy efficiency, power, and flutter resistance
Time Saver: Reduces setup time from hours to minutes
Secure Beat Hold: Clock can be moved without affecting beat accuracy
Universal Fit: Designed for all 400-day clocks with optional minor modification



