We are glad you are not an entrepreneur. When you yourself decide to join a discussion about product features and the usefulness your best contribution is to state time will tell?
I personally think that in principle a watch that incorporates a phone is a great idea, as long as I don't need another unit to make it fully functioning device. A Bluetooth headset/phones is fine, but not a smartphone.
They are very nice watches made in my home state on traditional equipment. Very small production, I really don't know enough about their market to say about investment value. I have always bought what I like, rather than for investment. The one rule of thumb in most brands is to buy in the secondary market if possible. sorry about not being able to say one way or the other with real knowledge.