SR Sakae SVX - which BB?
 

As it turns out my Super Record crankset is cracked, so I was looking for another one to fit my bike. I am considering buying a NOS SR Sakae SVX, which is obviously a lower class crankset, but only 100g heavier.
Unfortunately, I can't find any information about the BB length for this crankset, and I'm not sure which taper is suitable, as I read that some SR cranksets use ISO.
So does anyone know which bottom bracket would fit this crankset?