These coinbits would seem to solve all of these problems. They just need a catchier name.
Well, you have the words "coin" and "bit" there, maybe shuffle things around, experiment with changing word order and things like that. It could work.
Well, we'll see. People here have long lists of requirements that "would make them buy a smartwatch", and the lists even include things that are far away from reach of current technology.
In reality, all it requires is some marketing.
Add a Bitcoin app and show a short video clip Linus Torvalds says that "yeah, smartwatches are quite interesting area where Linux is used". Make it so that you can unlock the watch and SSH to it and do stuff. The nerds will arrive.
"Given enough eyeballs, all advertisements are profitable."
-- Dice Holdings, Inc.
I want a smartwatch, that looks and feels exactly like my current watch (Casio WVA-470 with Titanium bracelet), but has notification features over bluetooth etc. Batterylife must be over 2 months with single charge and use solar and/or wrist movement for charging. Also the time needs to be synced automatically, through RF-waves atomclock or with the help of the mobilephone.
We should be shooting for 1 week battery life for now, as the battery is small and it's running Android. I know you want 2 months but it most likely is not possible at least for a long time. Your other requirements do not seem unreasonable though.
Always draw your curves, then plot your reading.