I had this commissioned by somebody on Etsy - the watch is 28mm and the lugs are 16mm. I don't think I've ever found the strap to be uncomfortably small.
It was bespoke so I imagine you can have any dimension that you'd like. The watch does have spring bars so wouldn't be suitable for watches with fixed lugs (e.g. ATP) but there was a thread on MWR recently where there was an option for those.
Edit: This was it (you'll need an account to view).
https://www.mwrforum.net/forums/show...w-in-KK-s-book
This is a different strap: