The set''s width looks about like the 1.7mm Simon G band I tried on- maybe a smidge less? The other band... 2mm? a bit over 2mm? It''s hard to guesstimate... but I would guess each ring of the set could be 1.3-1.8mm and the band 2-2.2mm?
That is absoutely one of my favorite sets! I lub it.