This is the Sony Ericsson new released watch the MBW-150 Music Bluetooth Watches. It has an OLED display showing the track you playing on your Sony Ericsson phone and there are buttons to control the volume and skip tracks.
The watch also shows caller ID and SMS notifications, and a vibrating alert notifies you of incoming calls. MBW-150 has the Auto Pairing feature as well, the watch also alerts when you stay out of range from your phone. Sony Ericsson MBW-150 Music Bluetooth Watches are available in Classic, Executive and Music models and all come in at $200.