Gruen Watch Calibers Technical Data Sheet
Technical specifications table for Gruen watch movements. Lists caliber numbers (215R, 255R, 275R, 278R, 365SS, 415R, 460, 480, 510R, 510CD, 550SS, 560RSS, 710RSS, 730SS, 225R, 244F, 248R, 258R, 375SS, 397CA, 512, 711SS, 731SS) with corresponding base caliber, size, derived calibers, jewel count, escape wheel, hairspring, balance wheel, and other technical dimensions. Single page reference data from Gruen Watch Mfg. Co. SA, Bienne.
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Document Details
- Format
- Pages
- 1
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- Category
- Horlogerie