Designer George Nelson was commissioned by Herman Miller in the 40s to design a line of clocks. This is a faithful recreation of the Petal Clock designed in 1957. A classic midcentury modern design retweeked 1:1 for the post-modern world.
I have used several different generic clock work kits that have all worked well.
I would not recommend resizing the clock ask the holes will no longer fit the clockwork. If people are interested in a smaller version for other printers leave a comment and I can upload reworked models.
The author marked this model as their own original creation.