Title: Noncircular watch case

Abstract: A noncircular watch case is provided which includes a case body underlying and supporting a noncircular crystal. A pin and crown arrangement is mounted in the case body and is operatively connected to the watch movement for performing a plurality of functions. Fixedly connected at its ends to the back cover of the watch is a spring member which is releasably connected to the case body interior. For releasing the case body and crystal mounted therein from its connection to the spring and back cover, the case body is provided with a lug which is fixedly mounted thereon. An upward pressure may be manually applied to the lug, while the back cover is held in fixed position for releasing the spring from its preselected setting in a groove of predetermined incline in the case body.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Miyasaka, Tsutomu (Suwa, JA)
Ishiyama, Akio (Suwa, JA)

Application Number: 534109
Filing Date: 1974-12-18
Publication_date: 1976-03-02
Assignee: Kabushiki Kaisha Suwa Seikosha (Tokyo, JA)
Primary Class(es): 368/292 968/295, 968/330, 968/DIG1
Other Classes:
US Patent Ref:

3264820	Aug, 1966	Piquarez	58/90.
3782105	Jan, 1974	Nozawa	58/90.

Other Refs:
Primary Examiner: Miller, Jr., George H.
Assistant Examiner:
Attorney: Blum Moscovitz Friedman & Kaplan