Sometimes they have 4 arms of different colors. The markings with a marking every 5 minute mark, and bigger ones at the 15 , 30, 45, 60 markings…Clearly the markings represent increments of an hour
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> Clearly the markings represent increments of an hour
Yes, they are seconds.
The clock is called a “pace clock” and it is useful in swimming training. If someone wanted to time their laps it is convenient to have a clock that they can see when they start and when they end, and by having multiple arms they won’t need to wait very long in order to get to a good point of reference.
Multiple swimmers can be in the water at once and in order to avoid interfering with each other can delay their start times by 5 seconds for example.
Swimmers (much like runners) like knowing how fast they’re going. Perhaps you want to do a bunch of laps on a specific interval of time.
The clock is what you use to keep track of that. It’s aggressively colored to make sure that you can see it when your head pops up at the end of a lap. The second hand is particularly large to ensure you know what second you ended the lap on.
For timed swims for kids in swimming clubs
say 20 of free on the 60. Pick a colour hand (we only have 2 handed ones here) Red or black.
So you go on the Red 60. The kid after you goes on the red 5, the next kid the red 10 then the next on the red 15.
When you get to the other end you look at the clock. Where is the RED? did you make it in time? how many seconds rest do you get? then you go ago on the RED 60.
Other sets might be on the 55 sec, slower drills might be on the 1:10, 1:15 etc.
25m sets might be on the 30 sec, 35 sec, etc.
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