Building a clock with inserts

Several years ago I build my mom a clock for her birthday from paduak and used a nice looking insert in it. The mounting hole was 2 1/8” and the outside diameter was somewhere in the 3 1/2 – 4 inch range. I decided to build one for my wife and built the same specs and all. But now when I go looking for clock inserts, I don’t see any that mount in the 2 1/8” hole that have an outside diameter that large. Like an idiot, I drilled the hole before buying the clockworks, assuming that I would just buy the same insert that I bought the last time. So my question is this: Does anyone know of a place that supplies inserts with the same mounting hole size and outer diameter?

I found one place that offers the right outer diameter, but it needs a 2 3/16” mounting hole. I could get that and try to enlarge the hole, however, I don’t have a 2 3/16” bit and plugging a 2 1/8” hole does not sound easy. Any ideas? What would you do in this situation?

-- Brian T. - Exact science is not an exact science