ITEM NAME:DIY Clock Quartz Motor Wall Mechanism Clock Movement Repair Parts Replacement Gw.Crystal oscillator frequency: 32.768KHz. 1 x Hour Hand. Battery life (specification): Approx. One Year (UM-3). Needle length / weight: less than 200mm, less than 6g. The length / weight of the second hand: less than 130mm, less than 2G.