The Saturn is a VA3 PAL, you can tell from the serial number.
VA1 to 5 Saturn boards have some odd designations on them. VA1 was not marked in any way except for the controller board. VA2 and 3 were listed as VA SG and VA SD. VA4 and 5 are identical to 2 and 3 except that IC6 was a different chip. VA2-5 were used in both model 1s and model 2s.