Titanium, from a watchmaker who almost never uses it, carrying a perpetual calendar, in an edition of ninety-nine. The Octa Perpetuelle Anniversaire Tokyo was built in 2009 and 2010 to mark the fifth anniversary of the F.P. Journe boutique in Tokyo, and everything about its specification is a departure from the house norm. The case is polished titanium at 40 mm and 10.6 mm deep, with the crown and the pusher in 18K 6N gold. The dial is ruthenium applied over gold alongside whitened guilloche silver, and the hands are 5N gilt steel. Off-center hours and minutes, small seconds at 4:30, a retrograde date, day and month windows, and a year indicator. Ninety-nine were numbered and the series has never been repeated. Nothing in the catalog before or since combines these materials.
Four different materials meet on this watch and none of them is doing what it usually does here. Titanium is the outlier: F.P. Journe builds in platinum, in gold and occasionally in steel, and a titanium case from him is a genuine rarity rather than a variation. It is also a light metal, which on a watch that normally announces itself by weight produces a completely different object on the wrist, and polishing it rather than bead blasting it keeps the case reading as a precious-metal case until you pick it up. The 6N gold crown and pusher are the concession, two small warm points on an otherwise gray case, and they are functional parts rather than decoration. The dial then goes the other way. Ruthenium over gold is dark, cool and slightly blue, so the face is darker than the case surrounding it, which inverts the usual relationship where a pale dial sits inside a metal frame. Against that, the 5N gilt steel hands read gold rather than blue, which is the reverse of what Journe does on almost everything else. Every one of those decisions is a deliberate inversion of the house pattern, which is the point of an anniversary series. Seen together the watch is recognizably an Octa in its layout and almost nothing like one in its surfaces.
A perpetual calendar knows how long each month is and it knows about leap years, and that is what separates it from every simpler calendar. An ordinary date has to be corrected five times a year at the end of every short month. An annual calendar handles the thirty-day months and fails once a year at the end of February. A perpetual carries a mechanical memory of the four-year cycle, so it steps correctly from the twenty-eighth or the twenty-ninth to the first without being told. The Octa Perpetuelle displays that across four indications rather than crowding them into subdials. The date is retrograde, sweeping an arc and snapping back to the start rather than turning on a disc; the day and the month each have a window; and the year appears as a figure reading one, two or three, with a B standing in when February is a leap February. That last indication is the one that matters, because it is the only place where the mechanism shows its position in the cycle. Retrograde displays also ask more of a movement than rotating ones do, since the hand has to be driven across its arc against a spring and then released to return, and the return has to be instantaneous without shocking the train behind it. Underneath, the movement is Journe's Octa automatic in 18K rose gold, running at 21,600 alternations per hour with a barrel giving about 160 hours.
Boutique anniversary series are a category F.P. Journe has used sparingly and this is one of the more substantial of them. The pattern is consistent: a single boutique reaches a milestone, a reference is executed in a specification it was never otherwise offered in, the run is numbered and small, and the watches go to clients of that boutique rather than to the network generally. Tokyo has been an important market for the manufacture since the beginning, and a fifth anniversary in 2009 places the boutique's opening at a point when Journe was still a very small operation by any measure. What makes this particular series unusual is that the departure is material rather than cosmetic. Most anniversary editions change a dial color and leave the watch alone. This one changed the case metal, the hand finish and the dial treatment together, and put them on the most complicated function the Octa platform ever carried. Ninety-nine pieces across two years is a small number even by the standards of a manufacture that has never built at volume. It also means the series cannot be reconstructed: there is no ordinary production version of this watch to compare an example against, and no later run in the same materials to draw parts from.
A numbered edition should be bought on its number, so establish it first and confirm it against whatever documentation came with the watch. Titanium is the condition question here and it is a serious one: the metal is hard but it scratches in a way that cannot be polished out the way gold or platinum can, because there is no material to spare and a repolished titanium case loses its edges permanently. Examine the case profile against the original lines rather than looking only for marks. Check the 6N crown and pusher for wear, since those are the parts that get handled. Look across the ruthenium dial for any wear through the treatment, which cannot be reapplied to match. Confirm the gilt hands are original, since they are specific to this series and a set of blued replacements would be both wrong and hard to spot in a photograph. Then work the calendar properly: step the date through the end of a short month, confirm the retrograde hand snaps back cleanly rather than crawling, and check the year indicator advances correctly.
