best as I can tell outside of a laboratory. It's gotten so that I check it every day against the US atomic clock in Boulder Colorado. I'm really finding this to be strange. Another Tutima with the same Lemania 5100 runs a little fast. My Breitling 50th anniversary keeps close time, as well as my 2008 Cossie. In fact all of my auto mechanical pieces keep 'good' time. This Yachting model is extraordinary when I think of all the watches I've owned.
_________________ I only do that which I choose to do, when I choose to do it.
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