12 Mar 38mm Bands Fit Every 38mm Apple Watch
There has been some confusion surrounding the different Apple Watches and the bands. To clear it up, yes you can use a 42mm stainless steel band (such as the link bracelet) on your Apple Watch Sport. Every band fits every type of Apple watch as long as the size matches (38mm/42mm).
This means you can customize your watch in many different ways. Such as adding a neon colored rubber sports band to your $10,000 Apple Watch Edition or making your Apple Watch Sports more formal or professional by adding a stainless steel band to it.