| 摘要 |
PROBLEM TO BE SOLVED: To manufacture an inexpensive palladium-plated substitute watch external component having color tone and brilliance equivalent to those of the original one. SOLUTION: This watch external component is manufactured by coating stainless steel, titanium, brass, zinc or the like with an iron - chromium binary alloy having color tone and brilliance equivalent to those of plated palladium and excellent in corrosion resistance and antimagnetism by sputtering, ion plating or the like.
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