Thanks, Foxtail! That's really helpful and interesting to know. I've been collecting for 8 years now and I've never seen the watch or the accessories loose, let alone together MOC. No one else seems to own one in similar condition so maybe it is as rare as I had assumed.
Isn't it funny how as kids we "saved" things for special occassions or so they weren't lost, completely overriding the intended use of the item. I was that way with certain clothes and in particular, Barbie purfume. In the end I would have worn clothes once before I out grew them and the tiny amount of Barrie purfume I insisted on saving dried up. I purposely do the opposite now; life is too short for saving things for special occassions that may never come.