I tried the app you showed the screenshot from, but my results were all over the place. It even got the BPH of my watch wrong. I had much more reliable results with the app "Watch Accuracy Meter".
But I don't have a timegrapher to compare it to.
If I had to pick one watchmaker (not brand) for the rest of my life, it would be Seiko, even though I only own one from them.
They just have everything in their portfolio from affordable quartz to the highest level of watchmaking (Credor anyone?), I have high respect for their total vertical integration, back when accuracy competitions were still a thing they blew the Swiss out of the water, and the Spring Drive is IMHO the most genius achievement in watchmaking of the last couple of decades.
I would need a Daily, a Dress watch and a Beater. Maybe Daily and Beater could actually be the same, like a robust Diver or something. Tha would make room for a "Bonus", for which I would pick a Chronograph.
And for all three I would pick one that potentially lasts forever.
They wear them and take them off at the beginning of each episode to show what they are wearing.
But I don't know if they put it on just before and don't really wear them that day.
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