MECHANICAL WALKING SPACE MAN VERSION 5 - SY/YONEYA - JAPAN
Tin wind up grey robot. (No antenna or head pip.) The arms of this version are all metal; some versions have a yellow plastic hand insert that slots into the arm. Several feet variations exist: gold, red, rounded, square - and different leg construction. Second type (later) box.
There are good quality reproductions available. To identify an original look for the following:
SPACE MAN printed on the back not ATOMIC ROBOT or SPACE ROBOT
A fixed key, not a separate one.
SY logo on the side of the body
Full red eye dots, not semicircles.
Yoneya