This standard specifies the minimum requirements and test methods for antimagnetic watches. This standard simulates the case where a watch is accidentally exposed to a 4800A/m DC magnetic field. Appendix A of this standard is applicable to antimagnetic watches whose antimagnetic performance exceeds 4800A/m, and the corresponding magnetic field strength mark value is attached.
GB/T 26716-2011 Referenced Document
GB/T 4028-1994 Timekeeping instruments-Symbolization of control positions