An fully serviced, fully original classic 
Magnetic (no wear), direct drive (low slip) mechanism.
High torque (1.5 kgf·cm or 0.15 N·m), which means the platter spins at the desired speed almost immediately (0.7 seconds to reach 33 ¹⁄₃ RPM from standstill), and rapidly reacquires the desired speed, without "overshooting", if the platter is dragged or nudged. This aids beatmatching.
Low wow and flutter (0.01%), implying that the platter stays within 1/100 of 1% of the desired speed.
Heavy base (2.5 kg), and increased isolation of platter from base, reduced the likelihood of feedback or stylus jumping.
Variable pitch control, allowing the rotational speed to be adjusted from -8% to +8% (for the purpose of beatmatching).
High reliability: many examples of SL-1200s lasting well over 15 years of heavy use and withstanding physical shock without functional impairment.
S-shaped tone arm: as found on vintage high end hi-fi turntables.
Accessoires: original single adapter
Nags: dust cover has fine scratches, pitch fader pain is slightly worn