This standard specifies the types and performance of portable watches that can withstand magnetic fields (hereinafter referred to as anti-magnetic watches). Notes: 1. Electronic display watches are not subject to this standard because they are not affected by magnetic fields in principle.
JIS B 7024:1994 history
2022JIS B 7024:2022 Horology -- Magnetic resistant watches -- Classification, performance and test methods
2012JIS B 7024:2012 Horology -- Magnetic resistant watches -- Classification and performance
1994JIS B 7024:1994 Antimagnetic watches -- Classification and performance