Lubricating oil composition for timepiece and timepiece

A lubricating oil composition for a timepiece, comprising a lubricant component (A) containing at least one base oil (A1) selected from a polyol ester (A-1), a paraffin-based hydrocarbon oil (A-2) having 25 or more carbon atoms and an ether oil (A-3), an antiwear agent (B) comprising a neutral phosphite ester (B-2), and an antioxidant (C), wherein

• the total acid number of the composition is not more than 0.8 mgKOH/g,
• the antiwear agent (B) is contained in an amount of 0.1 to 15 parts by mass based on 100 parts by mass of the lubricant component (A), and the antioxidant (C) is contained in an amount of 0.01 to 3 parts by mass based on 100 parts by mass of the lubricant component (A), and
• the neutral phosphite ester (B-2) is represented by the following general formula (b-2):
• wherein Rb21 to Rb24 each independently represent an aliphatic hydrocarbon group of 10 to 16 carbon atoms, Rb25 to Rb28 each independently represent a straight-chain or branched alkyl group of 1 to 6 carbon atoms, Rb291 and Rb292 each independently represent a hydrogen atom or a straight-chain or branched alkyl group of 1 to 5 carbon atoms, and the total number of carbon atoms of Rb291 and Rb292 is 1 to 5.