Japanese consumer electronics company Casio Computer Co has introduced to its domestic market, a watch that can exchange data with a personal computer. The PC X HBX-100J uses infrared data technology to communicate with the PC, enabling the management of personal data. When data on the watch or the PC has been updated, a synchronizing function ensures data is consistent. It has a 24Kb memory capacity and the attached data exchange software for the PC runs on Windows 95. The watch is available in stores in Japan as of yesterday, prices $200.