A watch that shows a second time zone, usually with an extra hour hand that turns once in 24 hours against a 24-hour scale.
A GMT watch lets its wearer read two time zones simultaneously, commonly local time and home time. In the familiar extra-hand layout, a hand makes one revolution in 24 hours and is read against a matching scale, which also distinguishes daytime from nighttime. Other dual-time displays use a separate subsidiary dial. Setting arrangements vary, so the wearer needs to identify which hour display a crown position or pusher adjusts. A GMT display serves a different purpose from a world-time display, which uses city names and a time scale to present times across multiple zones.
In job listings
Watch sales roles expect this sort of product knowledge. An advisor may be asked how to set the second time zone on a particular model, and may need to distinguish a GMT watch from one that shows world time. Search local jobs for “watchmaker”.
