| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wrist watch, accessories, tags, fasteners and a method for manufacturing the same, in which forgery prevention measures with enhanced forgery prevention are applied by preparing a structure not discovered only by having a look at the fact itself that forgery prevention measures are applied to characters and figures formed in a product, and by preventing the forgery prevention measures from being imitated.SOLUTION: A method for manufacturing exterior parts or movements for a wrist watch, accessories, tags and fasteners is characterized by: forming the exterior parts or movements for the wrist watch, accessories, tags and fasteners, of metal glass containing a glassy metal single phase, containing the glassy metal single phase by having a super-cooled liquid temperature region of 30 K or more at a programming rate of 0.67 K/s, containing a crystal having a particle size of 100 nm or less, or containing a glassy metallographic structure with a volume fraction of 50% or more; forming characters or figures in a portion; preparing a metal mold formed of lattice shapes with groove intervals of less than 10μm; transferring the lattices by pressing the metal mold to the characters or figures; releasing the cooling and pressing force after the transfer; and forming the lattices with the groove intervals of less than 10μm at least in a portion of the characters or figures by demolding the metal mold and cooling it furthermore or by casting.</p> |
