At 28 mm a set silver dial receives a single gold numeral at nine. At 36 mm it receives two, at six and nine, and the second one changes the dial completely. A lone numeral fixes one point on a circle and the eye works around from it; a pair establishes an axis, so the surface acquires a vertical orientation it did not previously have and reads as structured rather than merely marked. The same ground, the same stones, one more numeral, and a different kind of dial. This variant is the 36 mm arrangement in a case of steel and yellow gold, under a fluted bezel, on a Jubilee bracelet.
The pair belongs to the two-tone constructions specifically. At this diameter a set silver dial on the steel and gold cases carries gold Roman numerals at six and nine, set with stones, while the solid Everose case at the same size replaces them with baguette-cut diamonds instead. So the treatment identifies the construction as reliably as the bracelet or the bezel does, and a silver set dial with gold numerals at those two positions means steel is present somewhere in the watch. Against a cool ground the gold reads warmly and the stones set into the numerals catch light at their own angles, so the marked positions sit noticeably brighter than the settings at the remaining hours without the dial becoming crowded. The gold of the construction is confined to the fluted bezel, fluting never being cut into steel, and the case sides, lugs and bracelet are steel. The date sits at three under its magnifying lens. The axis those two numerals establish also changes how the date reads. With six and nine marked and three occupied by the aperture, three of the four cardinal positions are distinguished from the settings around them, and the aperture stops looking like an interruption in a ring and starts looking like a member of the same group. On the 28 mm version, where only nine is marked, the date sits alone as the odd element. It is a small thing and it is why the larger dial looks more resolved than a straightforward scaling up would suggest.
The larger case is what allows the arrangement to work at all. Two numerals set with stones, plus settings at the other hour positions, is more applied material than a 28 mm plate can carry while remaining rigid enough to sit flat beneath the hands, which is why the smaller case is given one numeral rather than two. At 36 mm the plate has the reserve for both. Behind it the movement is self-winding and holds roughly 70 hours away from the wrist, against close to 55 in the 28 and 31 mm references, since a larger case takes a physically larger movement with a proportionally longer mainspring. The date advances in a single step at midnight, the rotor winds as the wrist moves, and the crown screws home when the watch is not being set. The reserve in the plate has a second consequence beyond rigidity. Each numeral is anchored separately from the settings around it and the two kinds of fixing sit at different depths, so a plate carrying both is worked to two specifications across the same surface. At 28 mm that is achievable for one numeral and evidently not for two. The 36 mm plate absorbs it without difficulty, which is why the arrangement appears at this size and above rather than being scaled down.
Mother-of-pearl on this same reference makes the contrast worth noticing. At 36 mm on a two-tone case the shell dial carries the plain ring of settings and nothing more, exactly as it does at 28 mm, while the solid metal cases at this size add baguette-cut stones at six and nine. Silver gains structure on the two-tone construction and shell gains it only on solid metal. Two set grounds on one watch, both offered across the same sizes, and each answers the question of what a larger dial needs in the opposite way. Nothing in the specification indicates that the difference exists, and a buyer comparing the two dials will see a ring on one and numerals on the other without any explanation for why. What the divergence means in practice is that the two grounds cannot be compared on specification alone. A buyer told both are set with diamonds at 36 mm on a two-tone case will reasonably assume the dials are equivalently worked, and they are not: one carries numerals and settings, the other settings only. The difference is immediate in the hand and invisible in a listing, and it is what makes a photograph of the actual watch worth more than any amount of specification when the two are being weighed. The same caution applies to any two set grounds offered at one diameter, since the phrase used to describe them is identical and the dials underneath it are not.
The argument for this configuration is that it gives a neutral ground the most structure available to it without adding a second material. Everything on the dial is gold or diamond, the axis through six and nine gives the surface a direction, and the steel case keeps the result from becoming a gold watch. Collectors who choose it usually want a set dial that still reads as organized rather than decorative, and often prefer the two-tone construction because it limits how much gold is involved. The Jubilee keeps the piece comfortable across a full day. Among the arrangements this reference offers it is the most composed of the set dials. It is also the arrangement that will look most familiar to anyone who knows the larger Datejust references, since the gold VI and IX is the marker treatment most associated with the two-tone cases in the middle of the range, and it brings that association onto a dial that is otherwise entirely neutral.
