Horology. Cycloidal toothed gearings. Centre barrel-spring gearings.

Main informations

Collections

National standards and national normative documents

Publication date

December 1979

Number of pages

2 p.

Reference

NF S80-541

ICS Codes

39.040.01 Horology in general

Classification index

S80-541

Print number

Standard replaced by (1)

NF S80-541

March 1995

Standard Current

Horology. Corrected cycloidal toothing gears. Spring-barrel centre gears.

Le présent document définit des dentures qui peuvent être utilisées dans le cas où le barillet engrène avec un pignon dont l'axe porte l'aiguille des minutes.

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