Titanium-iron alloys for watch or decorative exterior parts, watch or decorative exterior parts, and watch bands

摘要

PROBLEM TO BE SOLVED: To provide exterior parts of watches or accessories, having a hardness large enough to prevent scratches or surface shape deformations caused by contacts with clothes or items when the exterior parts are being worn by persons, a decorativeness bright enough to seal surface somberness, and an affinity large enough not to cause metallic allergy on skins.SOLUTION: The exterior parts of watches or accessories according to the present application are made of an alloy of titanium and iron, which has a larger lightness at CIELab (L*a*b*colorimetric system) than that of 100% iron.SELECTED DRAWING: Figure 1A