CITIZEN Promaster Dive Automatic Mechanical 44mm Watch BlackBayOriginal Mean Daily Rate: +5 to HBAHOFCLS8R Z65 Mean Daily Rate: +5 to 3 seconds per day (Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under an artificially controlled environment for 12 days The dial is again created from polished black ceramic and features blackened applied subdial rings at 3 and 9 o'clock Dive in with the high performance sport style of a fully luminous dial The black rotating bezel with a black easy grip aluminum ring surrounds the easy to see