FREDERIQUE CONSTANT AUTOMATIC HEARTBEAT - FC-310VD2NH2BThe Highlife Ladies Automatic Heart Beat line revisits the Maisons iconic design revealing the inner workings of the movement, and brings it into the 21st century with an understated and minimalist design, as modern and unique as ever. FC 310 Hear Beat automatic movement Power Reserve: 38 hrs Vibrations: 28800 A h, 4 Hz Jewels: 26 Polished stainless steel case Case size: 34 mm Case height: 9. 80 mm Sapphire crystal See through case back Water