Timepiece with simultaneous time display for at least two time z

Details Timepiece with simultaneous time display for at least two time z Timepiece with simultaneous time display for at least two time z

1993-06-17

1994-06-21

Miska, Vit W.

Horology: time measuring systems or devices

Plural time zones

368 27, G04B 1922

Patent

active

053233638

ABSTRACT:
A timepiece for simultaneously indicating the time for at least two time zones, the timepiece comprising a watch movement; a dial, an hour indicating hand and a minute indicating hand, the hour indicating and minute indicating hands being mounted for rotating above the dial, for indicating the time for a first time zone; a first setting mechanism for the hands, first driving means for connecting the hour indicating and minute indicating hands to the watch movement, so as to rotate the hands for indicating the time over 12 hours; a first rotatable disc for indicating the time over 24 hours; second driving means for connecting the first rotatable disc to the watch movement, so as to rotate the disc of one revolution in 24 hours; a second rotatable disc for indicating the time zones; a second setting mechanism for the first and second rotatable discs, the mechanism comprising first setting means operable for setting the angular position of the first rotatable disc, independently of the rotation thereof by the second driving means, and second setting means operable for simultaneously setting the angular position of both the first rotatable disc and second rotatable disc, with an equal angular extent of rotation, wherein the first and second rotatable discs and the second setting mechanism for the discs are parts of a functional unit which is distinct from the watch movement.

REFERENCES:
patent: 723489 (1903-03-01), Rosenbusch
patent: 3513653 (1970-05-01), Denardo
patent: 3633354 (1972-01-01), Stemmler
patent: 3675411 (1972-07-01), Sakuma
patent: 4634287 (1987-01-01), Vuilleumier
patent: 4945521 (1990-07-01), Klaus

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