The links in the latest bracelets are connected using a pin and collar system, which is similar in concept to that used by several other manufacturers, including Seiko and Omega. Essentially, each link has a pin running through its width, with the central part also running through the adjoining link. In the center part, there is a collar which is is held in place by virtue of being a tight fit on the pin.
To remove a link is quite straightforward if you have the right tools (Which can be sourced quite cheaply and easily). Each pin is simply knocked out using a small pin punch and hammer. Sizing the bracelet is then a matter of removing links until the watch fits. On top of this, the bracelet has micro adjustment holes in the clasp, which mean small adjustments can be made by moving the spring-bar - again a simple job with the right tools.
If you do not have the tools or the confidence/experience, any high street jeweler will adjust the bracelet for you, for a small cost - some do it for free.
As a final alternative, CW will adjust the bracelet for you, prior to dispatch. This service is offered during the checkout process.