I created this clock face for my father who is a retired Marine. I created it in Fusion 360 then exported the 3mf. I've included a step file and the 3mf. The 3mf was scaled 2mm larger in the slicer to account for a little extra space that wasn't originally accounted for. Either size will fit.

Walmart clock this was designed for: Mainstays Basic Indoor 8.78" Black Analog Round Modern Wall Clock - Walmart.com