Reference:6552: Difference between revisions
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<small>[[Reference:air-king|Air-King]] › '''6552'''</small> | <small>[[Reference:air-king|Air-King]] › '''6552'''</small> | ||
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[[File:Ref 6552 hero.webp|thumb|center|640px|alt=Rolex 6552 Air-King, silvered dial with applied baton indices, alpha hands, c.1958|Rolex 6552 Air-King, silvered dial with applied baton indices, alpha hands, c.1958]] | |||
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The 6552 is the first automatic Air-King — a four-year reference (1953–1957) that sits between the hand-wound 4925 and the long-running 5500. Inside the case is Cal 1030, Rolex's first bidirectional self-winding caliber, with the butterfly rotor stamped ROLEX PERPETUAL PATENTED. The dial reads AIR-KING / SUPER PRECISION rather than the chronometer-rated OYSTER PERPETUAL text the contemporary Submariner and Explorer carried, even though the movement underneath was being adjusted to chronometer grade. The 6552 is where the Air-King first becomes the entry-tier Rolex with a flagship-tier movement underneath. | The 6552 is the first automatic Air-King — a four-year reference (1953–1957) that sits between the hand-wound 4925 and the long-running 5500. Inside the case is Cal 1030, Rolex's first bidirectional self-winding caliber, with the butterfly rotor stamped ROLEX PERPETUAL PATENTED. The dial reads AIR-KING / SUPER PRECISION rather than the chronometer-rated OYSTER PERPETUAL text the contemporary Submariner and Explorer carried, even though the movement underneath was being adjusted to chronometer grade. The 6552 is where the Air-King first becomes the entry-tier Rolex with a flagship-tier movement underneath. | ||
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== Core facts == | == Core facts == | ||