Jewelry and accessories usually are strongly associated with women. Though, that these days it is completely accepted for men too, to wear not only a watch, but bracelets or necklaces too (of course, depending on amount and style).
So, why not give it as a present for even a men? Besides the good look, it is something he can carry with every day, and keeps him reminded of the person who gave it, and of course the love behind. Additionally, magnetic therapy bracelets can also express the care because of its health effects.