The outer edge of a watch is labeled with UNITS PER HOUR.
Wrist watch that has the hands on number 3 and 11.
A watch has a shiny bezel around the outside with the words "units per hour" written on the top.
A gold,white and blue wristwatch laying on a piece of cloth and the words units per hour is printed on the edge of the watch.
A blue wristwatch that has units per hour written on the steel part of the watch.