I took the Sumo out of the watch draw a few days ago, after many many months and have started wearing it as a daily again. I'd forgotten what a great VFM piece it is. The one thing that is a bit of a negative for me is the bezel insert; I don't really like the font of the numerals on the OEM insert.

What replacement insert options are available? Is removing the OEM insert and fitting a new one a DIY job?