Warm case, cool dial: this is the Octa Lune configured the other way round. The case is 18K 6N gold and reads pink, the dial is white gold with whitened guilloche silver and reads pale, and the effect on the wrist is almost the reverse of what the same watch does in platinum with a gold dial. Sizes were 38 mm and 40 mm. The movement is the brass calibre 1300, which arranges the face with the hours and minutes off center, the small seconds at 4:30, the large date at 12, the power reserve at 7:30 and the moon phase in the upper half. This generation of the Lune stopped being made in 2015 and has no descendant in the same layout. Nothing currently offered puts these two metals together this way.
Wearing a warm case with a cool dial is a quieter proposition than it sounds, and the reason is what the wrist actually sees. The case is in the periphery of vision almost all the time; the dial is what gets looked at directly. Put the warmth on the outside and it registers as a glow around the edge of something otherwise pale, which is closer to how a watch is experienced in ordinary use than any head-on photograph suggests. The reverse arrangement makes the gold the thing you look at. This one makes it the thing you notice. The white gold dial elements and the whitened silver sit close together in tone, so the face itself is nearly monochrome and reads as a single pale surface interrupted only by the apertures and the blued hands. That gives the layout room to work, since four separate indications on a busy dial would fight each other. Against the 6N case the pale face also gains a definition it would not have in platinum, because the boundary at the dial edge is a real one. It is the more wearable of the two mixed specifications, and probably the more useful. A pale dial in a warm case also dresses in both directions, which a gold dial does not: it will sit under a cuff with a suit and it will read as an everyday watch with a shirt, and neither reading feels like a compromise.
Moving the hours and minutes off center is the decision that shapes everything else on this dial, and it is worth being clear that it is a movement decision and not a styling one. The brass calibre 1300 drives its time display from a position away from the middle of the plate, and the dial is drawn around where the hands actually emerge rather than the other way about. What follows is that the time occupies a subdial of its own, roughly a third of the face, with its own minute track and its own set of markers, and reads more like an instrument sub-register than like the center of a watch. Everything else arranges itself in the space left over, and the arrangement is dense without being cramped, because no two indications share an axis and none of them overlaps another. The dial is read by moving the eye rather than by taking it in whole. The rotor above is off-center too, turning 274 times in an average day to keep a barrel that holds roughly 160 hours of running, of which the manufacture underwrites 120. The escapement is an in-line lever with a fifteen-tooth wheel, the balance is free sprung with four inertia weights set into its rim, and the whole movement stands 5.70 mm high across 223 components carrying 30 jewels.
The Lune was the second complication the Octa family received and it set the direction for everything that came afterward. The Reserve de Marche came first and did the essential work of proving the platform: one automatic movement, a five-day barrel, a date and a reserve indication. The Lune added the moon, and in doing so established the pattern the manufacture used repeatedly from then on, which was to keep the base calibre untouched and build the new function as a module above it. The Divine followed with a moon and a large date together, the Calendrier brought an annual calendar, the Chronographe a flyback, and the UTC a second time zone with a world map. Six complications, one movement underneath all of them. That approach is why an Octa of any kind shares its jewel count and its barrel and its escapement with every other Octa, and why the differences between them live entirely on the dial. The Lune is where that method was first shown to work. It is easy to underrate that now, when modular construction on a proprietary base is ordinary practice, but in 2004 an independent watchmaker running one automatic calibre across a whole family of complications was doing something the industry had largely reserved for much larger companies.
A gold case is easier to misidentify than a platinum one, so settle the metal before anything else. Six N gold and rose gold from other manufactures sit at different points on the warmth scale and photographs flatten the difference; handle it, check the hallmark, and weigh it against a platinum example if one is available, because the difference in heft is immediate. Then look at the dial for refinishing, which on a pale dial shows as loss of crispness in the guilloche rather than as a color shift. Confirm the blued hands are heat-blued rather than painted. Decide the case size in person, since 38 mm and 40 mm are genuinely different watches on the wrist with this layout. Ask about service history as well, since a brass-plated movement of this age will have been opened at least once and the quality of that work varies. Then work the movement: the date across midnight with both discs landing together, the moon through a full cycle, and the reserve hand descending the whole of its travel.
