ISO 18684 discusses requirements and test methods for hard material external parts of watches ISO 18684 concerns whole watches, in which all or some of the components of the external parts are made of hard material, except for watch glasses.
ISO 18684 describes the performance in terms of resistance to mechanical and thermal shocks, corrosion, scratches, sunlight exposure, also to the wear of its components.
Note 1: ISO 18684 applies to all elements made in massive material whose hardness is greater than or equal to 1200 Vickers.
Note 2: ISO 18684 deals with constitutive components of external parts of watches. Given the variety of possibilities in the mounting of these elements, it is not possible to define and specify a complete watch made of hard material.
ISO 18684 on requirements and test methods for hard material external parts of watches useful for:
ISO 18684 specifies watch external parts properties in terms of hardness, wear resistance, or finish quality (brightness), which bring many undeniable advantages for this type of application.
Manufacturers of hard materials have developed knowledge with the aim of satisfying the legal requirements and the criteria of horological standardization, without ISO 18684 nor specifications that can serve as references. The aim of ISO 18684 is to clarify the general requirements and the test methods for the horological external parts made of hard material.
ISO 18684 provides safety requirements and describes the performance in terms of resistance to mechanical and thermal shocks, corrosion, scratches, sunlight exposure, also to the wear of its components.
ISO 18684 provides requirements, method of control, and acceptance criteria for the hard material external parts of watches, that helps to manufacture hard materials external parts of watches and superior quality watches.
ISO 18684