I want to assume you're talking about fashion here. The truth is that there are a lot of things that trended before, got out-fashioned and are now back trending. You can never tell what you would happen in the future.
However, I think wristwatches would never go out of fashion. Apart from telling the time, these delicate piece always seems to add a bit of smartness or style or even both to our clothing.
Little wonder they've been evolved too now have different colors and fashioned to fit modern trends. Wristwatches have become a compulsory piece of most people's dress sense.
Take my brother for example. He loves to look stylish and is always in with the latest trends of gadgets. One think he never forgets is his wristwatch. He has a couple of them and is alway proud to appear on photos with them. Even looking at those pictures will tell you how complementing wristwatches can be.
Pictures of my dad who's been alive since the 50's even shows wristwatches. So, you see, this piece new version goes out of fashion we are both about to see that's change any time soon.