Reference:Movements: Difference between revisions

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Cal. 1030 is a bidirectionally wound automatic used in 1950s Oyster references. Its 5.85mm profile ended the domed Bubbleback caseback, while the cutaway "butterfly" rotor stamped ROLEX PERPETUAL PATENTED is the usual visual identifier. Finishing includes perlage on the rhodium-plated main plate, brushed bridges, polished screw heads and red anodized-aluminium reversing wheels. A conventional index regulates the movement; the visible regulator arm distinguishes it from the later free-sprung 1560 and 1570. Documented fitments include ref. 6098 from 1952, Submariners 6536, 6536-1 and 6538, Explorer 6610 and Air-King 6552. The Field Manual and several auction catalogues identify Cal. 1030 in Oyster Perpetual 6567 examples; Ineichen lists Cal. 1050 for one 6567. Other catalogues assign Cal. 1050 to refs. 6564, 6569 and Submariner 6536/1. These are descriptions of individual watches; the Cal. 1050 entry records the competing attributions.

Cal. 1030 is a bidirectionally wound automatic used in 1950s Oyster references. Its 5.85mm profile ended the domed Bubbleback caseback, while the cutaway "butterfly" rotor stamped ROLEX PERPETUAL PATENTED is the usual visual identifier. Finishing includes perlage on the rhodium-plated main plate, brushed bridges, polished screw heads and red anodized-aluminium reversing wheels. A conventional index regulates the movement; the visible regulator arm distinguishes it from the later free-sprung 1560 and 1570. Documented fitments include ref. 6098 from 1952, Oyster Perpetual 6502 and 6567, Submariners 6536, 6536-1 and 6538, Explorer 6610 and Air-King 6552. Artcurial, Antiquorum and Sotheby’s catalogue 6502 examples with Cal. 1030; Watch-Wiki independently lists the association. The case 36701 records conflict: the Invaluable archive of Monaco Legend labels it 6502, while Phillips identifies that case as 6603. The competing catalogue attributions leave its reference unresolved. [https://www.invaluable.com/auction-lot/rolex-oyster-perpetual-ref-6502-honeycomb-dial-166-c-8e042b2aae Invaluable archive of Monaco Legend, lot 166]; [https://www.phillips.com/detail/rolex/134192 Phillips, lot 254] The Field Manual and several auction catalogues identify Cal. 1030 in Oyster Perpetual 6567 examples; Ineichen lists Cal. 1050 for one 6567. Other catalogues assign Cal. 1050 to refs. 6564, 6569 and Submariner 6536/1. These are descriptions of individual watches; the Cal. 1050 entry records the competing attributions.

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-Cal. 1030 is a bidirectionally wound automatic used in 1950s Oyster references. Its 5.85mm profile ended the domed Bubbleback caseback, while the cutaway "butterfly" rotor stamped ROLEX PERPETUAL PATENTED is the usual visual identifier. Finishing includes perlage on the rhodium-plated main plate, brushed bridges, polished screw heads and red anodized-aluminium reversing wheels. A conventional index regulates the movement; the visible regulator arm distinguishes it from the later free-sprung 1560 and 1570. Documented fitments include ref. 6098 from 1952, Submariners 6536, 6536-1 and 6538, Explorer 6610 and Air-King 6552. The Field Manual and several auction catalogues identify Cal. 1030 in Oyster Perpetual 6567 examples; Ineichen lists Cal. 1050 for one 6567. Other catalogues assign Cal. 1050 to refs. 6564, 6569 and Submariner 6536/1. These are descriptions of individual watches; the Cal. 1050 entry records the competing attributions.
+Cal. 1030 is a bidirectionally wound automatic used in 1950s Oyster references. Its 5.85mm profile ended the domed Bubbleback caseback, while the cutaway "butterfly" rotor stamped ROLEX PERPETUAL PATENTED is the usual visual identifier. Finishing includes perlage on the rhodium-plated main plate, brushed bridges, polished screw heads and red anodized-aluminium reversing wheels. A conventional index regulates the movement; the visible regulator arm distinguishes it from the later free-sprung 1560 and 1570. Documented fitments include ref. 6098 from 1952, Oyster Perpetual 6502 and 6567, Submariners 6536, 6536-1 and 6538, Explorer 6610 and Air-King 6552. Artcurial, Antiquorum and Sotheby’s catalogue 6502 examples with Cal. 1030; Watch-Wiki independently lists the association. The case 36701 records conflict: the Invaluable archive of Monaco Legend labels it 6502, while Phillips identifies that case as 6603. The competing catalogue attributions leave its reference unresolved. [https://www.invaluable.com/auction-lot/rolex-oyster-perpetual-ref-6502-honeycomb-dial-166-c-8e042b2aae Invaluable archive of Monaco Legend, lot 166]; [https://www.phillips.com/detail/rolex/134192 Phillips, lot 254] The Field Manual and several auction catalogues identify Cal. 1030 in Oyster Perpetual 6567 examples; Ineichen lists Cal. 1050 for one 6567. Other catalogues assign Cal. 1050 to refs. 6564, 6569 and Submariner 6536/1. These are descriptions of individual watches; the Cal. 1050 entry records the competing attributions.
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