Acoustic alarm device for watches

Details Acoustic alarm device for watches Acoustic alarm device for watches

1982-06-28

1985-01-15

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With significant casing or mounting support structure

368250, G04C 2302, G04C 2116

Patent

active

044935609

ABSTRACT:
An alarm device for a watch mounted in a recess provided in an upper portion of the watch case, for example in the upper portion of the band connecting portion of the watch case. The alarm device comprises a vibration plate secured to the bottom of the recess, a watertight sealing member, a cover for the vibration plate and securing means such as a screw for fixing the vibration plate to the recess through the watertight sealing member.

REFERENCES:
patent: 3777472 (1973-12-01), Iinuma
patent: 3879931 (1975-04-01), Yasuda et al.
patent: 3906713 (1975-09-01), Suda et al.
patent: 4197697 (1980-04-01), Mori et al.
patent: 4206590 (1980-06-01), Fukutomr et al.
patent: 4250573 (1981-02-01), Saito

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