Model Ditisheim's compensation balance
1920-1925
Two models of Ditisheim's monometallic compensation balances for use with Elinvar hairsprings
- Made:
- 1920-1925
Two models of Ditisheim's monometallic compensation balances for use with Elinvar hairsprings; (a) with raidal poising screws; (b) with sunk poising screws to avoid barometric disturbances
Details
- Category:
- Time Measurement
- Object Number:
- 1925-194
- Materials:
- model rings: mono-metallic, blades: bi-metallic and hairsprings (for use with): 'elinvar' (alloy including nickel, steel and chromium)
- credit:
- Mr. Paul Ditisheim
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