The most important suggestion I can make is, to use the resources offered. If I had gone to https://www.clockshop.com.au/replace-quartz-clock-movement-guide and read and watched the video, it would have been so easy, but being an old bloke, I just rushed through it with total disregard. I ordered the wrong part. I emailed and discovered how good it is to deal with a family business in Australia. The correct part arrived, and the clock with the broken mechanism is working perfectly. I have kept the original mechanism as it looks like it will fit another clock we have, and when it breaks, I will be ready.