Reference:oyster-perpetual: Difference between revisions

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| [[Reference:1505|1505]] || Auction estimates circa 1960–1980; the circa-1960 date conflicts with the case serial chart || Cal. 1570 in reviewed auction catalogues; no changeover established || Rolex’s 1980 catalogue describes the steel-and-gold model as the 1503 in steel and gold, with a “fancy dial.” Cambi labels a circa-1971 all-steel example; attribution unresolved. Auction catalogues show blue, silvered and champagne dials, varied bezel terminology, and 34–36 mm measurements

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| [[Reference:1507|1507]] || Auction estimates circa 1962–1975; production limits unknown || Auction catalogues label examples Cal. 1560 or 1570; exact fitment unverified || Yellow-gold Oyster Perpetual Date. The inside caseback of a Sotheby’s 1507 is stamped 1503; other catalogues use 1503/1507. Collector lists call the bezel tightly fluted, while auction terms vary. The linked page documents the case, dial and movement evidence

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| [[Reference:15003|15003]] || Auction examples circa 1983–1986; production limits unknown || Cal. 3035 in exact-reference catalogues || Steel-and-gold 34 mm Oyster Perpetual Date. Christie's photograph shows a smooth rounded bezel; Heritage catalogues a fluted gold bezel on a separate watch. Christie's, Farber and Heritage report Chevrolet caseback emblems; the catalogue records leave their purpose unidentified. [https://onlineonly.christies.com/s/christies-watches-online-keystone-collection/rolex-two-tone-date-chevron-ref-15003-187/73507 Christie's] [https://jewelry.ha.com/itm/timepieces/rolex-ref-15003-two-tone-gent-s-oyster-perpetual-date-circa-1985/a/5081-60267.s Heritage] [https://www.bidsquare.com/online-auctions/farber-auctioneers-and-appraisers/rolex-date-two-tone-automatic-watch-15003-5189707 Farber]

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 | [[Reference:1505|1505]] || Auction estimates circa 1960–1980; the circa-1960 date conflicts with the case serial chart || Cal. 1570 in reviewed auction catalogues; no changeover established || Rolex’s 1980 catalogue describes the steel-and-gold model as the 1503 in steel and gold, with a “fancy dial.” Cambi labels a circa-1971 all-steel example; attribution unresolved. Auction catalogues show blue, silvered and champagne dials, varied bezel terminology, and 34–36 mm measurements
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+| [[Reference:1507|1507]] || Auction estimates circa 1962–1975; production limits unknown || Auction catalogues label examples Cal. 1560 or 1570; exact fitment unverified || Yellow-gold Oyster Perpetual Date. The inside caseback of a Sotheby’s 1507 is stamped 1503; other catalogues use 1503/1507. Collector lists call the bezel tightly fluted, while auction terms vary. The linked page documents the case, dial and movement evidence
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 | [[Reference:15003|15003]] || Auction examples circa 1983–1986; production limits unknown || Cal. 3035 in exact-reference catalogues || Steel-and-gold 34 mm Oyster Perpetual Date. Christie's photograph shows a smooth rounded bezel; Heritage catalogues a fluted gold bezel on a separate watch. Christie's, Farber and Heritage report Chevrolet caseback emblems; the catalogue records leave their purpose unidentified. [https://onlineonly.christies.com/s/christies-watches-online-keystone-collection/rolex-two-tone-date-chevron-ref-15003-187/73507 Christie's] [https://jewelry.ha.com/itm/timepieces/rolex-ref-15003-two-tone-gent-s-oyster-perpetual-date-circa-1985/a/5081-60267.s Heritage] [https://www.bidsquare.com/online-auctions/farber-auctioneers-and-appraisers/rolex-date-two-tone-automatic-watch-15003-5189707 Farber]