Citizen Men's PROMASTER LAND Series Eco-Drive Radio-Controlled Watch PMD56-2952Product Highlights The H100 Movement radio controlled watch not only automatically corrects time, date, and day of the week by receiving standard radio waves, but also features three functions: JIS Class 1 magnetic resistance, shock detection, and hand correction with perfex technology. Product Overview This radio controlled watch receives standard radio waves to automatically correct time, date, and day of the week. It also includes perfex technology