Carnelian against a diamond-set bezel is a harder combination to pull off than it appears, because a saturated orange-red stone and a ring of white diamonds are competing for the same attention. Reference 128348RBR is the 36mm Day-Date in yellow gold with a diamond-set bezel, and this configuration cuts the dial from carnelian and sets it with gold hour markers carrying diamonds, with Roman numerals at six and nine also in gold and also set. The bracelet stays plain gold. What makes it work is that the stone is opaque: carnelian sits flat rather than glowing, so it holds its ground as a color field while the bezel does the sparkling.
The 36mm case is solid yellow gold, and the bezel is set with diamonds in place of the fluting the Day-Date normally carries. Replacing the fluted bezel removes the model's most recognizable feature, and on a stone dial that matters, because the fluting would have supplied a warm ring around a warm dial where the diamonds instead supply a cool one. The dial is cut from carnelian, sliced from a block of raw material and selected only where color and structure meet Rolex's own standard; the material forms in bands, so no two slices carry the same internal distribution and every dial is different. Hour markers are gold set with diamonds around the perimeter, with Roman numerals at six and nine in gold and also diamond-set, giving the dial two marker forms and a vertical axis. The day is spelled in full at twelve, the date at three under a magnifying lens. The President bracelet is yellow gold with semi-circular three-piece links and a concealed folding Crownclasp. Diamonds on a bezel raise the brightness of everything around them and a translucent or shifting dial material loses definition against that, while carnelian is opaque, dense and saturated enough to hold its own, which is why Rolex pairs set bezels with it more readily than with opal or mother-of-pearl. The stone cannot be repolished or matched, and a replacement dial carries different banding.
The functional set is a day of the week spelled in full and an instantaneous date, with secure rapid-setting for both and a stop-seconds function for exact time setting, and it has not changed in seven decades. When the Day-Date launched in 1956 no wristwatch showed the day as a complete word, because the disc required exceeded what existing calendar layouts could hold, and Rolex designed the movement around solving that rather than adapting an existing one. Both indications jump instantaneously at midnight rather than creeping through the change. The day disc is available in a wide range of languages and is fixed to the individual watch at manufacture, so the language is a permanent specification rather than a setting. Adjustment runs through a screw-down crown with a double sealing system, with no correctors on the case flank and nothing needing a tool. The self-winding movement carries approximately seventy hours of power reserve, so both calendar indications hold through a weekend unworn. There is no second time zone and no chronograph. Eight grounds are built at this reference and the display is identical beneath every one of them. Carnelian is the only ground here taking hour markers set with thirty-two diamonds and Roman numerals at six and nine carrying twenty-four more, an arrangement no other ground at this reference takes.
Rolex has cut dials from decorative stone since the 1970s and has paired them with set bezels for nearly as long, though the combination is less common than either element on its own, because a stone dial and a gem-set case are two different arguments for the same watch. Carnelian is among the more recent stones in the range and appears most often on the Day-Date and the Lady-Datejust, never on steel. A stone dial cannot be repolished, matched or repaired. Within the yellow gold 36mm range this sits above the fluted-bezel 128238 carrying the same carnelian dial, and below the fully set configuration of this reference, with the 128398TBR alongside. It belongs to the current 36mm generation and sits alongside the 40mm 228348RBR. Those numerals give a low-contrast stone dial two fixed points of structure, and on a watch where the bezel is already supplying brightness they stop the dial from reading as undifferentiated. Within the reference, carnelian is one of five grounds that exist only in set form, while champagne comes both plain and set and green ombre and white are never set at all. Champagne and mother-of-pearl are the two grounds listed in more than one marker arrangement, and both bracelets are offered on every configuration.
This configuration appeals to collectors who want a stone dial and a set case and understand that the two do not usually flatter each other. Here they do, because carnelian is opaque and dense enough not to be washed out by the bezel, where a translucent or shifting stone such as opal or mother-of-pearl would lose against it. Keeping the bracelet plain is what holds the balance: the setting stays at the top of the watch and the gold below it gives the eye somewhere to rest. It suits established collectors who already own both stone-dial and gem-set references separately and want the one that combines them, and buyers who prefer warm dials in warm cases. Every example differs in the stone, and carnelian at this level of setting turns up rarely rather than predictably. One further point bears on the choice, and it concerns condition. Carnelian cannot be repolished or matched, and a replacement dial will carry different banding, so an example with a clean stone is worth more attention than one with a marginally better bracelet. On stone-dial references the dial is the component that determines whether the watch is worth having.
