HOURWORNJoin the list One lap. A whole day.
On a conventional GMT display, the extra hand takes 24 hours to make a full turn. Read it against the 24-hour scale: 08 is eight in the morning; 20 is eight in the evening. The ordinary hour and minute hands still tell their own time.
The useful part is choosing what that second time means to you. Home while you travel. A friend overseas. The city where a collector you trade with lives. Give the extra hand a job.
Two places, kept separate.
Grand Seiko’s 9F86 instructions show two uses: an AM/PM indication for the same zone, or a second time zone. In its travel example, the regular hour hand follows local time and the 24-hour hand keeps home time.
Setting controls differ between movements. Use the instructions for your exact watch; this explanation is about reading the display, not a universal crown-setting procedure.
A small habit worth keeping.
Try the GMT desk with two cities you actually care about. Notice the date as well as the hour. Tomorrow can already have started somewhere else.
A useful watch detail can be visually satisfying and quietly helpful at the same time. Our Navy / Red artwork keeps the bezel as its own subject. The watch function and the apparel artwork are separate things, connected by an interest in the same detail.
Read the source.
Manufacturer instructions for the examples in this note. Always use the manual for your exact watch.
