You can now buy an official Apple Watch magnetic charging dock

Available to buy starting today from Apple's online store, the Apple Watch magnetic charging dock is offered only in white (at least for the time being), and should arrive in retail stores stating November 20. Prices are as follows: $79 in the US, $99 CAD in Canada, €89 in Europe, and £65 in the UK. Needless to say, this dock is not exactly cheap - it's more expensive than an iPhone Lightning dock ($49).
As for the Apple Watch, prices for it still start at $349, so you'll have to pay at least $428 if you want both the Watch, and the magnetic charging dock.
source: Apple