Hmm, perhaps an iWatch would fulfill such a role
Watches made the transition from time piece to jewelery many years ago. With the time being ubiquitously available watches have been relegated to being a "wearable bracelet" (is there any other kind?) - A Rolex submariner, for example, does the exact same thing as a $5 plastic cheapy, but people still buy Rolex and all the other > $5 watches as jewelery (i.e. social signalling of status)
That said, I can completely understand the position of making an iWatch and forcing the choice between existing watches and Apple's. However, to me it's better to competing with fitbit than rolex.