ITEM NAME:DIY Clock Quartz Motor Wall Mechanism Clock Movement Repair Parts Replacement Z a.imagelink a:hover.imagelink {color:#db3606;.Crystal oscillator frequency: 32.768KHz. Needle length / weight: less than 200mm, less than 6g. The length / weight of the second hand: less than 130mm, less than 2G. Minute output torque: less than 30gf-cm (1.5V).