International Organization for Standardization (ISO)
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ISO 1112:2009
Scope
This International Standard specifies the technical definitions of functional and non-functional horological movement jewels. It describes the different types of jewels used, and how this is to be marked on a timekeeping instrument or used in advertising.
ISO 1112:2009 Referenced Document
ISO 6426-2 Horological vocabulary - Part 2: Technical and commercial definitions; Technical Corrigendum 1
ISO 1112:2009 history
2009ISO 1112:2009 Horology - Functional and non-functional jewels
1999ISO 1112:1999 Horology - Functional and non-functional jewels
1974ISO 1112:1974 Horology; Functional and non-functional jewels