World timepiece

Horology: time measuring systems or devices – Plural time zones

Patent

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Details

G04B 1922

Patent

active

048212482

ABSTRACT:
A world timepiece having means for controlling the time correction of the fundamental time that the fundamental time is interlocked to the time of a region having time difference when the correction amount is shorter than a time-differential unit time (thirty minutes or one hour), and is not interlocked when the correction amount is equal to the multiple of the time-differential unit time.

REFERENCES:
patent: 4274151 (1981-06-01), Kamiwaki
patent: 4316272 (1982-02-01), Naito

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