Salmon appears once in the Supersonnerie family, on this reference. Across the minute repeaters Audemars Piguet builds on the 42 mm Royal Oak case the dials are black, smoked burgundy, brown, smoked grey, smoked blue and this salmon, and only one of those is a warm pale colour. Salmon is a shade with a long history in complicated watchmaking and almost none in this collection, so putting it on a titanium repeater is a deliberate reach outside the Royal Oak vocabulary. It works because titanium is a cool grey that gives the dial nothing to compete with, where a gold case would have argued with it. The Grande Tapisserie grid holds the colour rather than flattening it, which a plainer dial finish would not have done, since a pale warm ground shows the cut edges of each square more clearly than a dark dial does.
The case is 42 mm across and 14 mm thick in titanium, with the octagonal bezel carrying the eight exposed hexagonal screws that have identified the Royal Oak since 1972. The height is a consequence of the repeater rather than of styling, because chiming components need room and cannot be compressed the way a going train can. Titanium is the significant material choice here and it is an acoustic one before it is an aesthetic one: it is less dense than steel or gold and transmits sound differently, which is why the house uses it repeatedly for this complication. A repeater has to move air, and the case is part of the instrument rather than a container for it. It also takes finishing differently, accepting a satin brush cleanly while resisting a bright polish, so the alternation of brushed faces and polished chamfers reads with less contrast here than on a precious metal reference and the geometry is carried more by the edges themselves. The dial is salmon with the Grande Tapisserie pattern, the larger of the two grids the collection uses, with white gold applied hour-markers and Royal Oak hands above it. The bracelet is integrated titanium, tapering from the case with the same satin treatment so nothing along its length introduces a bright surface, closing on an AP folding clasp, and its light weight is immediately noticeable at this diameter.
The function set is a minute repeater with hours, minutes and small seconds. A minute repeater chimes the time on demand, striking the hours, then the quarters, then the remaining minutes, so the time can be read in the dark or without looking. It is the oldest of the great complications and the one with least practical use in the present, which is precisely why it survives: a repeater is bought to be listened to rather than consulted, and it is the only complication whose output is sound. Audemars Piguet publishes this construction under the Supersonnerie name, its own approach to the acoustic problem that has limited wrist-worn repeaters since they were first attempted, which is that a sealed case is a poor instrument. The rest of the dial is deliberately quiet, with three hands, applied markers and a small seconds display, and nothing that would distract from a watch whose main function produces no visual output at all.
The Royal Oak is the collection Audemars Piguet is built on, and the Supersonnerie repeaters sit among its most serious references. The family runs across titanium with salmon, smoked grey and smoked blue dials, black ceramic with a black Grande Tapisserie dial in plain and baguette-set marker versions, titanium with platinum links and a smoked burgundy dial, and rose gold with a brown dial. Titanium dominates the family for acoustic reasons rather than commercial ones, which is the opposite of how case materials are usually chosen at this level, where the metal is selected for what it signals and the movement is fitted afterwards. Elsewhere the collection carries its complications separately, across perpetual calendars, flying tourbillons and chronographs, and combines a repeater with a chronograph and a calendar only in the Grande Complication at 44 mm.
This reference suits a collector who wants a repeater that is not dressed as one. Minute repeaters are traditionally precious metal objects and often overtly formal, and a titanium case with a salmon dial is neither, so the watch has to be explained rather than recognised. That suits the complication, which is private by nature and which nobody else in the room experiences. It appeals to someone who has heard a Supersonnerie and understands what the case material is doing, and to someone who wants the one warm dial in a family that is otherwise dark or grey throughout. Salmon is also a colour claimed by vintage complicated watches for decades, so it carries an association the Royal Oak does not usually reach for, and one that suits a repeater more naturally than it would suit a sports chronograph.
