Title: Divers' fluid-tight watch comprising an electric circuit

Abstract: An arrangement for indicating elapsed time is disclosed that is particularly useful in marine timepieces, divers' wristwatches and the like. The arrangement utilizes a light-emitting member which, upon the lapsing of a predetermined time is energized to give visual indication to the wearer of the elapsed time. A mechanical switching structure is described that is controlled by the movement of the timepiece and which upon closure causes the light emitting member to be energized. An electronic circuit is provided which causes the light emitting member to flash when energized.

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Inventors: Hofer, Peter (Grenchen, CH)

Application Number: 497942
Filing Date: 1974-08-16
Publication_date: 1976-03-16
Assignee: ETA A.G. Ebauches-Fabrik (CH)
Primary Class(es): 368/256 968/578, 968/888, 968/967, 968/DIG1
Other Classes:
US Patent Ref:

3611702	May, 1969	Spadini	58/57.
3727395	Apr, 1973	Baylor	58/38.
3729923	May, 1973	Brigliano et al.	58/50.

Other Refs:
Primary Examiner: Jackmon, Edith Simmons
Assistant Examiner:
Attorney: Stevens, Davis, Miller & Mosher