Rolex "Oyster Perpetual Explorer Date Precision", Movement No. 59011, Case No. 515518, Ref. 5700, Cal. 1530, 33 mm, circa 1954

A gentleman's fine automatic wristwatch
Case: steel, screw back "I/60", screwed "Twinlock" winding crown, later riveted Rolex steel bracelet, Ref. 7205, lugs 61. Dial: silvered, applied indexes, centre seconds, blued centre seconds hand, steel alpha hands, date indicator. Movm.: rotorwind movement, rhodium-plated, ground, 25 jewels, Glucydur screw balance, blued balance spring, shock protection for balance.