Ryan Verbeek is fashionable enough as he moves about Holland’s oldest city, but he says his style is not likely to draw much attention. His friends and more than 51,000 followers on Instagram beg to differ and are always curious about one detail — the band Verbeek is wearing with his Apple Watch.

The 17-year-old student has a collection of nearly 40 bands that he routinely switches out depending on his mood or wardrobe. His enthusiasm has gained him Instagram fame, free bands from companies hoping he will model them for his social media account, and a deal to collaborate with a French company to design a couple of bands.