For Pace Clock we have a term and definition in Swimming.

The large clocks with highly visible numbers and second hands positioned at the ends or sides of a swimming pool so the swimmers can read their times during interval training in warm-ups or swim practice. The red hand goes around every minute (60 seconds). The 60 is sometimes referred to as the "top" and the 30 as the "bottom". Swimmers who watch the clock and know their times improve the most they get feedback learn pace and improve technique.
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