ISO 764:2020
Horology — Magnetic resistant watches
This document specifies the minimum requirements and test methods for magnetic resistant watches.
This document applies to magnetic resistant watches designed to withstand daily magnetic fields.
Moreover, it indicates the marking which the manufacturer is authorized to apply to them.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 General
4.2 Requirements for mechanical watches
4.2.1 Running conditions of mechanical watches during magnetic fields application
4.2.2 Residual effect for mechanical watches after magnetic fields application
4.2.3 Other effects
4.3 Requirements for electronic watches
4.3.1 Running conditions of electronic watches during magnetic fields application
4.3.2 Other effects
5 Test methods
5.1 Test conditions
5.2 Test apparatus
5.3 Test procedure
5.3.1 General
5.3.2 Test procedure for mechanical watches
5.3.3 Test procedure for electronic watches
6 Marking
Annex A (normative) Enhanced magnetic resistant watches
Annex B (informative) Flow chart for the test procedure
Annex C (informative) Relationship with the distance from products generating magnetic fields
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 General
4.2 Requirements for mechanical watches
4.2.1 Running conditions of mechanical watches during magnetic fields application
4.2.2 Residual effect for mechanical watches after magnetic fields application
4.2.3 Other effects
4.3 Requirements for electronic watches
4.3.1 Running conditions of electronic watches during magnetic fields application
4.3.2 Other effects
5 Test methods
5.1 Test conditions
5.2 Test apparatus
5.3 Test procedure
5.3.1 General
5.3.2 Test procedure for mechanical watches
5.3.3 Test procedure for electronic watches
6 Marking
Annex A (normative) Enhanced magnetic resistant watches
Annex B (informative) Flow chart for the test procedure
Annex C (informative) Relationship with the distance from products generating magnetic fields
Bibliography