Everest Leather Strap Buckle Width

[cmajpwc]

Hi all, I tried searching this but couldn't find an answer on Google nor the forums.

I just ordered two leather straps from Everest to be used with my Explorer 1. My questions is, does anyone know what the buckle width is for the Everest leather straps? I'd like to order a butterfly deployant for them but want to make sure I order the right width. I can see they taper but I am not sure how much.

Thanks in advance!