I think that I will soon have to make a similar decision, but what in my opinion is a pro of the hinged version is that you have a massive piece in your hands or in your safe when not wearing, i.e. a complete jewellery object and not "just" two lightweighter, on-its-own useless pieces...on the other hand the two pieces are more unique and have a long tradition...probably for 24/7, which I prefer, it doesn't matter which version...