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I very much doubt it, in the same way that I doubt anyone actually uses calculator watches for mathematical operations; I'd imagine pilots derive a small degree of comfort of knowing they've got a potential backup, even if it they don't actually know how to use it...
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Yep, I do! All 3 of my watches have slide rules.
Very handy for back of the envelope calculations when you don't have an envelope. Also currency/unit conversions. Being able to multiply and divide to 3 significant figures is pretty handy quite often!
Don't believe there's any use for the flight calculations though. Either an electronic system or a full-size E6-B would be used for that.
Thrustvector
mmccarthy
@pdlouche
This came up as suggested spam on the social media, but still... anyone actually USE these things?
https://journal.hautehorlogerie.org/en/slide-rule-what-is-it-and-how-does-it-work/