Let the guesses begin. Poll options will be in total price. Let's assume the band is constant. I'm just going to round the base price of 350 up to 400 to make things easier. So 400 for the base level watch.
I can't imagine Apple selling a $3000 Watch, if only for the liability costs of repairs and replacements. An iPhone costs Apple <$200 in parts, so every refurb they keep on stock to give you when yours breaks is worth $200.
A solid gold Watch may have $100 in electronic components, but the cost of the gold would be $$$. That is a lot of money to keep in refurb inventory.
You can't go into a Rolex dealer with a broken $10000 watch and just swap it for a new one. Therefore, I think the Apple Watch will be gold plated and no more than $999, if it is even that high. Remember, a mechanical Rolex will live and can be repaired forever. Once an Apple Watch's electronics go, it is junk. It is doubtful that people will pay so much for something with a limited lifespan.
I predict $4,999 for the gold Apple Edition.