Reference:3131: Difference between revisions
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<small>[[Reference:bubbleback|Bubbleback]] › '''3131'''</small> | <small>[[Reference:bubbleback|Bubbleback]] › '''3131'''</small> | ||
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[[File:Ref 3131 hero.jpg|thumb|center|640px|alt=Rolex Bubbleback 3131|Rolex Bubbleback 3131]] | |||
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The 3131 is the reference where the Bubbleback grows up. Three years after ref 1858 introduced the Perpetual rotor in an Oyster case, Rolex simplified the case architecture. In 1936 the 3131 and its sweep-seconds twin 3132 arrive with a two-piece Oyster: the caseback screws directly into the case middle, and the separate bezel ring disappears. From that point forward every Rolex Oyster of consequence uses the same two-piece logic. The 3131 is the hinge on which that transition turns. It is also, deliberately and exclusively, a precious-metal watch. | The 3131 is the reference where the Bubbleback grows up. Three years after ref 1858 introduced the Perpetual rotor in an Oyster case, Rolex simplified the case architecture. In 1936 the 3131 and its sweep-seconds twin 3132 arrive with a two-piece Oyster: the caseback screws directly into the case middle, and the separate bezel ring disappears. From that point forward every Rolex Oyster of consequence uses the same two-piece logic. The 3131 is the hinge on which that transition turns. It is also, deliberately and exclusively, a precious-metal watch. | ||