As the old joke goes, here is something incredibly amazing and rare, something we could never have dreamed of seeing, and the other is some squiggles on a page.

I know it it is not exactly and OtD topic but I found the observation of gravitational waves (the graphs behind the watch) and incredibly exciting and amazing discovery. It is true it only confirms what Einstein predicted around 100 years ago but it was not clear, whatever the validity of the theory, that we would ever detect gravitational waves. But to get such a precise and unambiguous signal is just amazing. I would claim that it is slightly on topic as a critical aspect of the experiment is the time difference between the signal in Washington and the signal in Lousiana, which matches the length of time for light to travel from Washington to Lousiana. Might be a bit tricky to time it with a Heuer tachymetre equipped watch though...

The watch is pretty nice as well, perhaps not quite as rare. Or is it? I think the gravitational wave experiments believe they will see three to four events a year, which is about as often as we see this model sold!

The watch is just back from Jasper and ClassicHeuer who did a great job getting it back into top condition.