Full details of the build including source code and schematics is in my project notebook on GitHub - see LEAP#533.
Here's a quick demo..
I used an old cardboard box as formwork for the dial. 0.9mm copper wire for the dial, and some 1.2mm copper wire for the base stand parts (always pick up more copper wire from the jewelry/craft section when I visit Daiso or Tokyo Hands). It solders really well with my favourite "shiny" 2% silver solder.