It is built like a war tank but I think the rubber band/strap could be better designed for comfort. It is a sturdy band, worthy of this watch but it is really unconmfortable to wear. I own about 25 watches Rolex, Breitling,Omega, Tags, Oris, etc,  and this strap takes the lead in the discomfort department. Maybe you have to get used to it but so far, after a couple of uses, still cannot get use to it, maybe it is just me but still deserves 5 stars.