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Skeleton watch allowing sight of all or some of the elements forming it

  • US 4,926,401 A
  • Filed: 09/22/1989
  • Issued: 05/15/1990
  • Est. Priority Date: 09/23/1988
  • Status: Expired due to Fees
First Claim
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1. A skeleton watch allowing sight of all or some of the elements forming it including in combination:

  • a caseband bearing an upper crystal and a back cover,a frame contiguous to the caseband and arranged in the space circumscribed by the caseband between the upper crystal and the back cover,a leg contiguous to the frame and extending toward the center of rotation of the watch display organs, said leg covering at least said center,a motor secured to the frame and including a rotor directly driving a minutes wheel bearing a minutes marker,a fixed pinion driven into an orifice provided in the leg at the location of the center of rotation of the display organs,a shaft united with said fixed pinion around which are pivotally mounted the minutes wheel and an hours wheel bearing an hours marker, said minutes wheel carrying first and second coaxial planet pinions displaced from its center, the first planet pinion meshing with the fixed pinion and the second planet pinion meshing with the hours wheel,zones and conductors metallized on the internal face of the back cover intended respectively to accommodate the electrical and electronic components necessary for the operation of the watch and to establish connections among such components, anda time setting arrangement.

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