Title:
EXTERIOR PARTS FOR WATCH
Document Type and Number:
Japanese Patent JPS5867837
Kind Code:
A
Abstract:
PURPOSE: To obtain inexpensive light wt. exterior parts for a watch, by using an alloy with an Au and Al as main components.
CONSTITUTION: An alloy based on Au and Al, for example an 18 karat Au-Al alloy or a 14 karat Au-Al alloy is prepared. When the exterior parts of the watch is fabricated by using said alloy as a stock material, said exterior parts is lightened by about 20% compared to a conventional one made of a pure gold material and not inferior in corrosion resistance compared to a conventional product. In addition, there is no problem about the appearance thereof and a manufacturing cost is also lowered.
Inventors:
KAWADA MASAHIKO
Application Number:
JP16657581A
Publication Date:
April 22, 1983
Filing Date:
October 19, 1981
Export Citation:
Assignee:
SEIKO INSTR & ELECTRONICS
International Classes:
C22C5/02; G04B37/22; (IPC1-7): C22C5/02; G04B37/22
Attorney, Agent or Firm:
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