1" headset

Hi, I was dumb enough to lose the two O-rings on the upper and lower cups of a NIB 1" Suntour XC Pro headset. I bought it years ago, so don't even remember what happened to them. I think I can find replacement O-rings, but I need to know the inner and outer diameters. Can anybody help? Thanks!

Up for sale a NIB Dura Ace 1" headset from early 90's. It's new in box and still sealed as shown in pic. I'm asking 100 euro + 14 eur for registered (signed-for and traceable) mail from Italy to everywhere in Europe. Feel free to ask for any question.

small springtime clearout asking 100€ for the cranks including rings (52|42), bolts and bolt cover, 30€ for the iko sport carbon on alloy post (26,4mm) with quite a damage (wallhanger part mainly), 30€ for the modolo composite frame shifter pair and last but not least 90€ for the 1" mavic 315...