Rolex "Oyster Perpetual Superlative Chronometer officially certified" Movement No. 98218, Case No. 1166941, Ref. 1008, Cal. 1570, 35 mm, circa 1965

An automatic wristwatch so called "Zephyr"
Case: steel/pink gold, screw back (1/65), screwed "Twinlock" winding crown, two-tone riveted steel "Oyster" bracelet (punch mark 4/66). Dial: silvered, applied luminous indexes partly re-lumed, centre seconds, luminous alpha hands. Movm.: rotorwind movement, rhodium-plated, ground, 6 adj., 26 jewels, Glucydur screw balance, shock protection for balance.