Pink is the only warm thing anywhere on this watch. The case is steel and white gold, the markers are white gold, the bezel stones are colorless and the bracelet is two metals that both read cool, which leaves the dial as the single source of warmth on the entire object. Reference 278344RBR is the 31mm Datejust in a combination of stainless steel and white gold with a domed bezel set with diamonds, and this configuration pairs it with a pink dial and applied index markers, on the Oyster bracelet. Pink is one of three grounds at this reference offered both plain and set, so the same color can be had with or without stones on the face.
That is a reversal of how two-metal references usually work. On an Everose or yellow gold watch the gold supplies the warmth and the dial either matches it or sits against it, and here there is no warm metal at all, so a warm dial has nothing to agree with and nothing to fight. It simply sits inside a cool frame as the only color present. The lacquer is applied in several thin coats to keep the tone even across a curved surface, opaque and holding one value regardless of angle, and against white gold it reads cooler than the same pink would in a warm case, staying nearer to rose than to coral. The applied indexes are white gold and faceted, drawn for this case size rather than scaled from another, and on a pale colored ground they read by the shadow beneath them as much as by their own brightness. The case is a combination of stainless steel and white gold, the least visible two-metal pairing Rolex makes, and the bezel is white gold set with diamonds, so the stones cover most of the only surface where the second metal would be identifiable. The bracelet is the Oyster, three broad flat links brushed across the top with polished flanks, returning light in plain sheets rather than scattering it. The date sits at three under the Cyclops lens on a matched disc, its frame polished white gold set flush with the lacquer. White gold is also considerably denser than steel, so the bezel here is noticeably heavier than a steel one of the same dimensions, and that weight is the one way the second metal announces itself on a watch where it cannot be seen. The bezel stones are seated individually into recesses cut in the gold rather than dropped into a preformed channel, and on a ring this small there is less circumference to absorb an error. Rolex also draws the hands for each case size rather than scaling a single set across the range, which is one of the reasons a 31mm Datejust does not read as a shrunken 36mm one.
The Datejust shows the date and nothing else. The Cyclops lens over the aperture at three has been part of the model since 1953 and remains the most recognizable thing about it at a distance. The date changes instantaneously at midnight rather than creeping through the surrounding hour, the feature the Datejust introduced in 1945 and the one it takes its name from. Correction runs through the winding crown without moving the hands, hand winding uses the same crown with no separate position to learn, and nothing the watch asks for requires a tool. The movement is self-winding with a power reserve of approximately 55 hours, an engineering result on a movement built to fit a 31mm case rather than a figure carried down the range, since a smaller barrel has less room to store energy and a proportionally smaller rotor gathers less of it. The crown screws down against the case, and the Oyster closes with a concealed clasp folded away inside the links. A movement of this size gathers less from the same wrist movement than a larger one, so the watch does better worn daily than kept aside between outings. Correction takes seconds and requires no tool.
The Datejust arrived in 1945 as the first self-winding wristwatch to show the date in a window, and the 31mm case sits between the 28mm Lady-Datejust and the 36mm original, which makes it the size for buyers who find one too small and the other too large. The 278000 generation replaced the 178000 series in 2018 with a revised case and bracelet. Pale saturated lacquers are a recent development within the model, which ran on silver, white, champagne and black for most of its history. Pink in particular is a color Rolex has committed to quietly, appearing across several models over the past few years without ever being presented as a theme. Within the generation, 278344RBR is the steel and white gold reference with a diamond-set domed bezel. Rolex casts its own gold in a foundry on its premises, which is unusual in the industry and is the reason the brand can hold an alloy to a consistent color across decades of production rather than across a single batch. The 31mm case is the least discussed of the three Datejust sizes and the one that has quietly absorbed most of the demand that used to go to the smaller references.
The buyer for this wants warmth without a gold watch. On an Everose reference the same dial produces something entirely warm that can read heavier than its size, and here the cool case and bracelet hold the color to one surface, which keeps the whole object lighter than the specification suggests. It is also the softest configuration on the reference, since nothing on the dial is set and the markers are the least assertive Rolex fits, and on the Oyster it stays a watch that gets worn rather than saved. Buyers who found the Everose versions too committed to warmth generally arrive here. It also photographs accurately, which is not true of the nacre or gem-set dials here, since a solid lacquer holds one value and a camera can only record what is actually there. Pink is one of three grounds here offered both plain and set, alongside dark grey and silver.
