Geometric clock - hole for clock works is approx 54 mm or 2 3/16 inches. fits standard clock works from amazon - https://www.amazon.com/gp/product/B01K2HSG92/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1

Found the basic 2D pattern on the internet and cleaned it up and added the clock mount in the center via photo shop (older version) and created it and the base in fusion 360.

Printed on Prusa mini with PLA or PETG

Looks good with no additional finishing when done on the Prusa textured base.