Clock movement with a display for world time zones

Abstract

A clock movement with a display for world time zones comprises a power source, a second counter, a minute counter, an hour counter, and a time zone display. The time zone display further comprises an intermediate base, a time zone adjustable ring, and a dial plate. The intermediate base provides a planetary basic gear axially attached to the central of the bottom thereof to be passed through by a minute wheel set. The planetary basic gear at a lower side thereof connects with an axial stem provided a front hour wheel and a join ring at a lower periphery thereof. The join ring at a periphery thereof extends at least two circumferential elastic engaging hooks. The time zone adjustable ring provides an inner gear ring part to mesh with the planetary basic gear. An inner ratchet ring with a plurality of ratchet teeth at the top of the time zone adjustable ring for engaging with the two engaging hooks. The dial plate is inserted into the time zone adjustable ring and provides a planetary idle wheel set by the periphery thereof to mesh with the inner gear ring part and the planetary basic gear. Hence, the dial plate can display a correct time.

Dependencies are inferred from the claim text.