So again, I completely understand if you're not interested in the data that a swim watch provides, but many of the reasons listed above for not using one are a little silly.
What useful data does a swim watch provide that a pace clock doesn't?
In addition to my previous responses, a pace clock can't â€‹provide a detailed historical record of training and performance (including rest and speed), record your heart rate or provide lap alerts.
What can a pace clock do that a swim watch can't?
And when you travel, what happens when your pool doesn't have a pace clock?
The original question was....
And my answer is that a pace clock is all one really needs. There is zero value to swimmers in all the other metrics a watch provides because they have an extremely high understanding/feeling/awareness of themselves in the water and are able to tell those other metrics on their own without a device. Swimmers can tell when a 50 yard or 100 yard split is 0.5 sec slower or faster than the previous one during 500 yard repeats without anyone or any device telling them. That's how much awareness swimmers have in the water. I haven't swam competitively since I graduated college 10 years ago and I can still tell anyone the splits I've held in training from 10-20 years ago. There's also the fact that a watch is extremely inaccurate at recording those metrics.
I'm not saying that people shouldn't wear a watch. I'm just answering the question on why swimmers don't wear one which boils down to just "they don't need it".
If a pool doesn't have a pace clock, absolutely wear a watch or put a watch right next to your lane. I swim in a pool that doesn't have a pace clock so I'm forced to wear a watch. But I never look at any of the data.
I don't think you appreciate how many swimmers you're calling "not real swimmers". My apologies for nitpicking, but the definition of a swimmer is eluding me. While your Mensa-level recollection of your gradeschool splits are impressive, is that really a criterion for a real swimmer? Finally, as I responded above, I don't know in what capacity Lucy Charles relies on her watch, but she's often pictured swimming with it. Are you really prepared to tell her she's not a real swimmer?