Calendar watch having a centrally pivoted date indicator

Details Calendar watch having a centrally pivoted date indicator Calendar watch having a centrally pivoted date indicator

1989-10-06

1990-11-27

Miska, Vit W.

Horology: time measuring systems or devices

With calendar indicator

Movable ring or disk

G04B 1924

Patent

active

049742426

ABSTRACT:
A calendar watch includes a central date indicator (4). The indicator is united with a crown wheel (9) comprising teeth (11) forming a circular crown (12) arranged to be perpendicular to a face (13) of said wheel. The teeth (12) are driven by a finger (14) rotating in a plane intersecting said crown in its height. The finger is united with a date driving wheel (15). The invention permits easy transformation of a watch having its date display in a dial aperture to a watch having a date indicator rotating about the center of the movement.

REFERENCES:
patent: 3628322 (1971-12-01), McDuffee
patent: 3683614 (1977-08-01), Komiyama
patent: 3859783 (1975-01-01), Wuthrich
patent: 3882669 (1975-05-01), Jakob
patent: 4443112 (1984-04-01), Stotz et al.
patent: 4611925 (1986-09-01), Vuilleumier

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