Chart Drives - 725 Springwound Clock by Sonceboz
- Spring wound
- 11-Jeweled escapement
- Interchangeable with CDS 820 battery chart drive
- A standard in most circular recorders
This chart drive was designed to operate under difficult conditions. It is of robust construction and the movement itself is protected by a cover with a sealing gasket and spring loaded washers. The ouput torque is much greater than any other chart drives, e.g. 24oz/in after 8 days run at 1 rev./24 hours.
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> Chart Drives - 725 Springwound Clock by Sonceboz