1. Movement Dimensions - Outside diameter 24.40mm Casing Dimensions - 29.36 mm (with dial holding spacer). Total height 5.32 mm 2. Functions - winding mechanism Manual winding Automatic winding with ball bearing Both winding with one way clutch. additional function date display with quick date correction, second hand reset . Jewels 24 jewels. accuracy -20 ~ +40 second per dat (23° ± 2°C) -Shock resistance shock-absorber device for balance staff. Vibration frequency 6 vibrations per second (21,600 Vibrations per hour) NH-35 is a good Japanese Automatic movement, comparable to Swiss movement , in terms of accuracy, precision. It is reliable and a good choice.