Good clock replacement: This kit is good size replacement both in terms of the shaft and the size of the hands. It can be a replacement for your broken clock. Simple style clock movement: good quartz movement will work . Simple design, easy to use. Wide application: You are enable to use it to repair, replace or make a home clock; Applicable to -, three-dimensional embroidery, craft home clock, -less draw clock, clockwork, etc. Perfect DIY clock kit, clock accessories, clock parts accessories. Energy efficient. Accurate timing. HR1688 movements are all one-second movements Brand New and High quality. Type:Clock Movements Pointer model: HR20120+ black second head Size: Measured from the center hole, hour hand 145.5mm, hand 207mm, second head diameter 7mm, suitable for wall clocks with a clock size of about 450-500mm Wall clock movement, appearance size: 56*56*16mm, shaft length 31mm, copper thread size: 24mm, suitable for 18-20mm thickness clock panel products. Type: Increase by jumping seconds Each movement is equipped with: golden hexagon nut, golden washer, black rubber pad, golden through nut, iron hook A Crystal frequency: 32.768KHz Travel time accuracy: +/- 30Sec/Month at 1.5V DC. 25 Celsius (unadjusted) Current consumption: Less than 190A at 1.5V DC. Working voltage: 1.3V to 1.7V Rated voltage: 1.5V Working temperature: -10 Celsius to 50 Celsius Use Battery: .5V AA Carbon battery (not included) Instruction: 1. Attach the clockwork to the product to be installed. 2, is installed in accordance with the standard 12 points 3. Pull out the positioning pin from behind the clockwork and insert the battery. (Do not insert the battery and then pull out the locking pin.) Colour: black Material: + aluminum Size: 56x56x16mm Package Contents: 1 * Movement 2 * Clock hand 1 set * Screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.