I still have the original Data, and I can confirm that this is the same way that the 90s Playmates Data figure was made; both the Season 3/4 and season 1/2 uniform versions.
See here with the stupid purple loops:
http://www.16bit.com/fotd/120917-data-star-trek-tng-s1.shtml
The earlier figure with the later uniform had them in neon orange.
Out of the TNG officers, only Data had this "feature" since his hands were sculpted flat and open instead of with curled fingers to grip accessories. I never understood why.
Kor