(November 23, 2021 at 6:17 pm)Helios Wrote:(November 23, 2021 at 6:09 pm)polymath257 Wrote: I certainly wouldn't be looking for a watch that cannot be detected (even in theory), nor using methods that cannot detect watches. But light isn't the only detection method.Or you could just buy a new watch
Or go without. I usually use my cell phone when I want to know the time.