Tight. Hate to have a watch flopping about. It feels bad and depending on the watch and just how loose means you sometimes have to jiggle it to be able to see it clearly. Nowadays when I see loose watches on bracelets, it just makes me think of hugely baggy jeans hanging down to the knees and boxers on show.
Sympathise if you're between sizes. One of the things I love about braided 'tropic' NATOs.