Champagne is built across a wider spread of case sizes than any other ground on this reference, from 28mm up to 42mm, and the marker treatment changes as it goes. At 28mm and at 40mm the ground is offered with applied markers or with Roman numerals. At 31mm, 36mm, 41mm and 42mm it comes with applied markers only. Reference 278278 is the 31mm Datejust in yellow gold, carrying a fluted bezel, and this configuration pairs a plain champagne dial with applied gold markers, fitted to a President bracelet. At this size the ground appears on six references and every one of them is yellow, which is the other thing champagne does consistently: it does not go on a cool case.
The case is solid yellow gold with the fluted bezel cut into the metal itself. The dial is champagne, a warm pale gold tone rather than a yellow one, close enough to the case that the two do not separate sharply and far enough from it that the boundary at the edge of the dial stays visible. Applied gold markers stand at the hours, faceted and raised off the surface, and they are the only structure on the face apart from the date window and the minute track. On a ground this close in value to its own markers the separation comes from height and from the shadow each marker casts rather than from contrast, which is why the applied treatment suits champagne better than a printed one would. The President bracelet is semi-circular three-piece links in the same gold, rounded across their width, and it is the only bracelet the reference offers. Taken together this is a watch with no cool surface anywhere on it and no element that contrasts with any other; the entire object sits at one temperature, and the only variation in it is between polished gold, matte champagne and the small shadows under the markers.
Hours, minutes, running seconds and a date advancing in a single step at midnight. The self-winding movement in the 31mm case holds roughly fifty-five hours of running time, which matches the 28mm references rather than the 36mm ones, since the smaller cases use a movement built for them. Nothing further has been added. The applied markers change how quickly the watch is read compared with the numeral dials the reference also builds. A Roman numeral identifies its own position and can be read in isolation; an applied baton has to be located relative to the others, so the dial is taken in as a whole rather than point by point. On a dial where the markers and the ground share a tone that is a real difference, because the eye has no contrast to work from and is relying on raised edges catching light. In practice the watch reads quickly in direct light and more slowly in flat light, which is the standing trade of a tone-on-tone dial and the reason it is usually chosen for how it looks rather than for how it functions. It also places this configuration precisely within the ground's range: the numeral option exists at the smallest size and at one of the largest and nowhere in between, so at 31mm the applied marker is not a preference but the only way champagne is built. That also means a buyer who has seen the numeral version on a smaller or larger watch and wants it here will not find it, and the nearest equivalent on this reference is the white dial, which is a colder watch in every respect.
Champagne is the ground the model is most associated with, and the catalogue treats it as belonging to one metal. Every reference carrying it at 31mm is yellow, and the same holds one size down. The set version behaves differently again: at 31mm champagne set with diamonds comes with twelve settings and nothing else, and it is the one set ground on this reference excluded from the oversized six, which silver, olive green and dark grey all receive. Across the range the name covers at least five separate dials, from twelve settings at 28mm, 31mm and 41mm to ten baguette-cut stones on the larger cases. The ground also reaches sizes this reference will never be compared against, including the 41mm and 42mm cases, where the same markers sit on a much larger surface and change the density of the face rather than its tone. Within this reference champagne is one of two plain grounds, the other being white with Roman numerals, and those two are the only unset faces among twelve configurations. Ten carry diamonds. Choosing the plain champagne is therefore choosing the most conventional dial on the reference and one of only two ways to have this watch without stones on it. Of the two it is the one that keeps the piece warm throughout, since white introduces the only cool element an unset dial on this reference can carry.
This is the version bought by people who want the watch to read as gold rather than as a watch with a gold case. Nothing on it disagrees with anything else, the markers are the same metal as the case, and at any distance the dial and the bracelet resolve into a single warm object. That is either the most restful configuration the reference offers or the least eventful one, and buyers tend to know immediately which of the two it is for them. Against the white dial, the other plain option here, this one hides the boundary between dial and case where white insists on it. Against the ten set dials it gives up the only cool element those dials contain. The same ground is built on 278288RBR under a bezel set with diamonds, which reintroduces the contrast at the rim rather than on the face, and that is the usual next step for a buyer who finds this version too uniform.
