Analog timepiece movement for large diameter energy cell

An analog timepiece movement adapted for powering by a large diameter thin energy cell, said movement comprising:

• a molded frame of insulating material having a top central wall, having depending peripheral side wall portions together defining a movement-side cavity,
• a substantially flat bridge member of insulating material extending between said peripheral side walls, so as to divide said movement-side cavity into an inner cavity and an outer cavity,
• said frame and bridge member together defining a plurality of pairs of coaxial bores, each bore of a pair defined in frame and bridge member respectively to provide bearings,
• a stepping motor having a rotor and a stator disposed in said inner cavity, said rotor having a pinion of insulating material rotatably journaled in said bearings,
• a dial-side gear train rotatably mounted on said top central wall on the side thereof opposite said inner cavity,
• a movement-side gear train disposed in said inner cavity and having a plurality of gear reduction wheel assemblies coupled to one another and to said stepping motor rotor, at least one of said wheel assemblies coupling the movement side gear train to the dial-side gear train, and at least two of said wheel assemblies having journals of insulating and non-magnetic material, rotatably journaled in said bearings,
• said peripheral wall portions and said bridge member together defining a circular envelope in said outer cavity adapted to fit and contain said energy cell, said energy cell being supported by said bridge member.