This part of ISO 3160 specifies general requirements concerning gold alloy coverings. It is applicable to watch-cases and their accessories, including bracelets.
ISO 3160-1:1998 history
2000ISO 3160-1:1998/Amd 1:2000 Watch-cases and accessories - Gold alloy coverings - Part 1: General requirements; Amendment 1
1998ISO 3160-1:1998 Watch-cases and accessories - Gold alloy coverings - Part 1: General requirements
1995ISO 3160-1:1995 Watch cases and accessories - Gold alloy coverings - Part 1: General requirements
1982ISO 3160-1:1982 Watch cases and accessories; Gold alloy coverings; Part 1 : General requirements