why luminous watches not suitable to wearing when sleeping

- Oct 17, 2017-

Luminous table pointer and dial on the coated luminescent material, mainly radium and zinc sulfide mixture, radium emission of radiation can stimulate the zinc sulfide crystal light, sleep, if wearing a table, the body will be eight to nine hours Radium radiation, the human body has a certain harm. Therefore, before going to bed, it is best to remove the luminous table, put on the table.

Watch the warranty period of mechanical watches and maintenance after half a year warranty, quartz watch warranty for three months, LCD display warranty for a month, watch clockwork warranty for 14 days. From the date of picking. Such as in the warranty period found shut down, travel is not accurate, free repair, repair time in the warranty period deducted.