ROLEX | EXPLORER REF 1016A STAINLESS STEEL AUTOMATIC CENTER SECONDS WRISTWATCH CIRCA 1975

Dial: matte blackCaliber: cal. 1570 automatic movement, 26 jewelsMovement number: 173981Case: stainless steel, screw down case backCase number: 4086560Dimensions: 35.5 mm diameterSigned: case, dial and movement