How is the anti-shock and anti-magnetism of the watch three proofs expressed?
- Jan 12, 2018-
In national standards, anti-magnetic and shock-proof performance standards are represented by "residual effects", and the residual effect refers to the difference between the instantaneous daily difference of the watch and the instantaneous day of the watch.
when the watch accidentally drops from 1 meter to the horizontal hardwood surface, the residual effect of the quartz watch is no more than 2 seconds, and the residual effect of mechanical watch is not more than 60 seconds.
when the watch by accident in the strength of 4800 a/m of a magnetic field, quartz watch no more than 1.5 seconds remaining effect, mechanical men's watch (machine core area of more than 314 square millimeters) residual effect no more than 30 seconds, mechanical female table residual effect no more than 45 seconds.