Patent ID: 7170827

Claim:
A timepiece having a driving source and a wheel train comprising: a motor and/or a spiral spring constituting said driving source; a gear wheel configured so as to rotate by rotation of said motor, and/or a gear wheel configured so as to rotate using said spiral spring as said driving source, said gear wheel having a gear wheel section and a shaft section; and supporting members including a bearing section which rotatably supports said shaft section of said gear wheel, wherein said supporting members is formed from a filler containing resin having a base resin of thermoplastic resin and carbon filler mixed with this base resin, said carbon filler is selected from a group consisting of; a monolayer carbon nanotube, a multilayer carbon nanotube, a nanografiber, a carbon nano horn, a cup stack type carbon nanotube, a monolayer fullerene, a multilayer fullerene, and a mixture of any one of the carbon fillers doped with boron, so that the construction is such that said bearing section of said supporting members does not require lubricating oil.