Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great watch, accurate and tough

I have owned this watch, with black face and titanium band, for almost four years. It is the best watch I've ever had, including the Seikos and Pulsars and Wengers. They are all good timepieces, and frankly more elegant, but for daily wear the Momemntum outshines them all.Very accurate and durable, I have done sports wearing the Momentum ranging from sea sports to shooting sports to aviation and a lot in between. Not a hiccup from the watch. The crystal is particuarly admirable. It's had and tough and even after these years and activities, not a scratch on it.Only problem - the clasp of the band is now loose and sometimes opens itself for no apparent reason. I guess I'll send it back for a service, but definitely it's a keeper.These watches have risen a great deal in price since I bought mine (I paid $120) but even so, knowing what I know now, I still think they are more than worth the money.