Case body construction for timepieces

Horology: time measuring systems or devices – Cases – Wrist worn

Patent

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Details

G04B 3708

Patent

active

042055237

ABSTRACT:
A timepiece case having an open back, and a case back cover for closing the back of the timepiece. A ring is attached to the back cover for projecting into the timepiece case when the back cover is in position covering the open back of the timepiece case. The back cover ring is dimensioned to fit snugly within the timepiece case and has an internal diameter sufficient to clear a timepiece movement as the back cover is attached to and removed from the timepiece case body. A timepiece movement holding ring of resilient material is dimensioned to fit snugly within the timepiece case for positioning and holding a timepiece movement therein. The holding ring has an opening dimensioned to receive and snugly hold in position a timepiece movement, and the holding ring has an upper peripheral surface for supporting a peripheral flange of the timepiece movement and for holding a face of the timepiece movement against a front of the timepiece case. The holding ring has resilient projections abutting the back cover ring for maintaining the holding ring in position between the flange of the timepiece movement and the back cover ring.

REFERENCES:
patent: 2719403 (1955-10-01), Gisiger
patent: 3479771 (1969-11-01), Stemann
patent: 4059957 (1977-11-01), Monnet

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