I believe Sinn is in a whole different level. You can not beat the toughness of a Sinn. The Sinn is all tool watch nothing fashionable about it. My U2 has been in many many oceans and clanked on many many boats and it still looks like new. I essentially wear my U2 any place that I don't want to have to think about protecting or thinking about the fact that I have a watch on.