Alright, I'd like to thank both of you for such informative responses!
If I may ask one more question, what could be the value for this guitar nowadays? Some small detrinions and bruises but overall in a good shape. Going to fix the tone/volume faders which lack the knobs at the moment.
It was bought as new for around 850-900€. I made a deal including a Gator hard case, altogether 950€.
Could this be the seam you were talking about? Both of the pics are from the same spot, just with different lighting.
I'm having trouble recognizing my Japanese Tokai SG model. I have no clue if it's sg-75 or sg-92 or something else. I'm also interested in the year of manufacture. I've had it for around 10-12 years. Serial number is 0920181