It is the worst watch I have ever bought in my entire life. It stopped working for no reason at all after 4 years of use. (I had it in storage for 3 years and since it is powermatic, it was as if it hadn't been used at all), and it is very disappointing because when you pay such a high price for something, you expect it to function well. My personal experience is that even though it contains expensive materials, what good are they if the system is terrible? One last note is that in the last month of use, it was losing 3 minutes a day from the correct time. And then it stopped working.