Clock Mechanisms, Clock hands and parts are a great idea for making your artwork into something functional. We have standard and high torque clock movements to suit a wide variety of sizes. The mechanisms that we stock are made in the USA and have a high degree of precision and accuracy. Clock hands ranging from 135mm (shaft hole to tip) for the minute hand up to 450mm. If you have wanted to make an artwork clock but didn't know where to start, art tree creations can help you out.