Timepiece move part and timepiece

Abstract

An object of the present invention is to provide a timepiece move part. A timepiece move part according to the present invention contains a Ni—Cr—Al alloy having a composition of 30 mass % to 40 mass % of Cr, 3 mass % to 5 mass % of Al, the balance being Ni and unavoidable impurities, and including an αCr phase, a γ phase which is a solid solution of NiCr, and a γ′ phase containing Ni3Al. It is preferable that the Ni—Cr—Al alloy further contains 0.8 mass % or less of one or two or more elements selected from B, Mg, Ti, and Si. It is preferable that the Ni—Cr—Al alloy has hardness of 650 HV or more. It is preferable that the Ni—Cr—Al alloy has a crystallite size of 152 Å to 213 Å or less, calculated from a 400-diffraction peak obtained by X-ray diffraction for the γ phase and the γ′ phase.

Dependencies are inferred from the claim text.