This is the Octa Lune in its later case sizes with a boutique dial, which is a narrower thing than either half of that description suggests. The model itself is the original moon phase from the Octa family, with the time displaced into a subdial and the calendar and moon arranged around it, and it was built at 38 and 40 mm before moving to 40 and 42. The boutique execution puts a blackened gold plate under whitened guilloche silver registers, in an 18K 6N gold case, sold through Journe's own shops only. It is out of production. Of all the dials in the family this is the one a dark plate changes least, because the layout was already busy.
Two surfaces make up the face. The main plate is blackened gold, and the time sits on a separate disc of whitened guilloche silver screwed down over it through a polished steel ring, which is the construction the house has used since the first watches. On a dark plate the effect is a bright island on a black field rather than a subtle difference in tone. A large date opens at the top of the plate. The moon shows through a crescent set on its side, low and to the left. The small seconds turn beneath the time disc. The case is 18K 6N gold at 40 or 42 mm and polished throughout, with the crown at the middle of the band. What the arrangement gives up in immediate legibility it returns in depth, since three separate levels of surface are visible on the dial rather than one. Depth is the word that keeps coming up with this dial and it is literal rather than figurative. The main plate sits at one level, the steel ring at another, and the time disc at a third, with the date aperture cut through all of it, so light falls across the face unevenly and the watch changes appearance as the wrist moves. A silvered version shows that too but less clearly, because the tones are closer together. Against black the levels separate completely, which is the strongest argument for the boutique execution on this particular model.
Underneath is the automatic Octa base introduced in 2001 and used across the entire family since. A 22K gold rotor set off to one side of the movement winds it in a single direction through a self-locking ball bearing system, which is more efficient at capturing small wrist movements than a bidirectional arrangement and is the reason the watch will run through a normal week without attention. The large date is built from two discs and changes on the instant at midnight. The moon steps forward at the same moment. Both are corrected from the crown in different positions, and the caseband carries no pushers at all, which keeps the case simple and the dial uninterrupted. Nothing about the mechanism was changed for the boutique dial; the entire program consists of finishing the plate differently and selling the result through a narrower channel. One consequence of the base being shared across so many references is that servicing is straightforward. A watchmaker who has worked on any automatic Journe of the last twenty years has worked on this movement, and parts are common across the family rather than specific to a single model. That is not always true of independent watchmaking, where a low production reference can become difficult to maintain within a decade of being discontinued. The Octa base avoids that problem by having been used for almost everything.
The Lune and the Automatique Lune have run alongside each other for close to twenty years, and the choice between them is the most common decision a Journe buyer makes at this level. The Lune keeps the original architecture and asks something of the reader; the Automatique Lune centers the hands and does not. Both have been through case size changes, and both have appeared in boutique black, in mother of pearl and in Black Label platinum, so the two families of variation run in parallel. Within that grid the gold and blackened Lune at the later sizes sits in a corner that few people set out to buy deliberately, which is usually a sign that the watches turn up individually rather than in any pattern. No numbers were ever published for any of it. The later case sizes matter to that comparison as well. When the collection moved up, the Lune went to 40 and 42 mm while keeping a dial drawn for a smaller watch, so the later examples carry more empty plate around the indications than the earlier ones do. On a silvered dial that extra space reads as air; on a blackened plate it reads as darkness, and the watch becomes noticeably more severe. Whether that is an improvement depends entirely on what a buyer wants from the model.
This is a watch for someone who has already decided that the off-center layout is the point rather than an obstacle. It takes longer to read than the centered version and rewards the delay, and the boutique plate sharpens the contrast between the bright elements and the dark ground until the dial reads almost as a diagram. In gold it stays warm at the edges, which stops the whole thing from feeling severe. Both later sizes were offered and the 42 mm carries the layout with more room around it. As a discontinued boutique reference the questions are condition, papers and generation, and generation matters because the same model name covers two different case size eras. Photographs are unreliable here for the usual reason: a dark dial photographs flat and this one is anything but. Anyone considering it should try to see an example under moving light rather than under a fixed lamp, because the whole character of the execution depends on how the three surfaces catch it.