Radio Room Clocks

For use in radio rooms. The diameter of the dial is 200 mm with the numerals 1 – 12 on the outer edge and the numerals 13-oo  on the inner side showing international time. Seconds are marked in red between hour numerals.

There are two 3 minute silent periods at 15 and 45 minutes past the hour marked in red. The clock has 2 hour hands, one to be set in Greenwich Mean Time and the other to indicate local time.