A chiming Royal Oak in smoked green

Audemars Piguet has expanded the visual vocabulary of its Royal Oak Minute Repeater Supersonnerie with a titanium reference identified as 26591TI.OO.1252TI.08. The Swiss watchmaker's official product page describes a smoked-green sunburst dial, a matching small-seconds display and an integrated titanium bracelet. The new appearance is the most immediate change a collector will notice, but the watch is defined just as strongly by a complex manually wound chiming movement.

The 42mm timepiece belongs to the small category of wristwatches able to announce the time acoustically at the owner's request. In this context, luxury is expressed through intricate mechanical construction and sound, not simply the use of precious material. The reference is presented with pricing on request, so an exact retail price should not be inferred from listings for other Royal Oak models or from speculative secondary-market advertisements. A formal consultation is also the appropriate place to establish current production availability, allocation conditions and the documentation supplied with such a technically demanding watch. None of those commercial details is established by a public product photograph alone.

The dimensions and the materials

Audemars Piguet gives the titanium watch a 42mm case diameter and a thickness of 14mm, with a matching titanium bezel and crown. Its construction includes an anti-reflective sapphire crystal and a specialised Supersonnerie soundboard caseback. The stated water-resistance rating is 20 metres, a technical specification that should not be confused with an invitation to swim or dive while wearing an intricate minute repeater.

The metal choice offers a different character from gold variants of the Royal Oak: the case and bracelet are made from titanium while selected dial details use precious metals. Titanium is often chosen for its comparatively modest density and corrosion resistance, but a finished watch's comfort depends on overall construction, the bracelet and the individual wrist. Its actual mass is not provided in the published specification reviewed here. The brand identifies rhodium-toned 18-carat pink-gold hour markers and 18-carat white-gold hands with luminous material. Those contrasts place colour and legibility at the centre of the design rather than covering every visible surface with a single finish.

The movement behind the chime

The watch is powered by Audemars Piguet's hand-wound Calibre 2953. Official specifications list 362 components, 32 jewels and a 72-hour power reserve, with the movement operating at three hertz, or 21,600 vibrations per hour. It shows hours, minutes and small seconds alongside the minute-repeater function. The brand gives the movement a diameter of 30mm and thickness of 6mm.

Mechanical specifications need interpreting together. A three-day reserve describes the energy available under the brand's stated testing conditions, not a guarantee that every owner will experience precisely the same duration with repeated chiming or varied use. The number of components similarly communicates mechanical complexity without establishing that the watch is intrinsically more accurate than a simpler model. Its stated 72-hour reserve makes the mechanical programme easier to understand in practical terms, but the manufacturer does not provide a figure for how many activations of the repeater can be accommodated under every winding condition. For a collector, the distinctive attraction lies in the integration of useful timekeeping and a highly specialised sound mechanism.

Why Supersonnerie is different

A traditional minute repeater uses a sequence of chimes to tell the hours, quarter hours and remaining minutes when activated. Making those strikes clear and resonant within a wristwatch has long been difficult because the case is far smaller than the body of a clock or pocket watch. Audemars Piguet's official account of its chiming expertise describes the Supersonnerie approach as using a soundboard arrangement to transmit vibrations more effectively.

The manufacturer connects this work to research involving watchmakers, technicians and people with specialist knowledge of music and acoustics. Its account of the RD development programme also refers to patented gongs, striking regulators and case construction. The precise acoustic result will depend on the individual movement and environment, so a written technical description cannot replace hearing the watch. It does establish that acoustic performance, rather than decoration alone, is central to the project.

A pink-gold counterpart

The Royal Oak range also lists reference 26591OR.OO.1252OR.01 in 18-carat pink gold, another 42mm Minute Repeater Supersonnerie powered by Calibre 2953. Audemars Piguet presents it as a warmer two-toned design, demonstrating how a common complication can be expressed through substantially different case materials and dial treatments. The presence of a second version is useful for collectors comparing the collection's design direction.

These variants should not be confused with different families of movements simply because their appearance differs. Their shared calibre provides a common technical foundation, while case material and finishing contribute to the watch's weight, appearance and wearing experience. Anyone comparing the two would still need to request complete specifications and availability from an authorised source, as the manufacturer does not disclose a universal price for each reference on the product pages reviewed.

Reading the green dial

The new titanium version uses a sunburst pattern beneath a smoked-green finish that is intended to change character with the light. Its small-seconds subdial sits at six o'clock, visually balancing the hands and the familiar Royal Oak silhouette. A polished inner bezel and the contrast between white-gold hands and pink-gold indexes are among the details specified by the manufacturer.

These aesthetic decisions are more significant on a watch whose technical identity could otherwise dominate every conversation about it. The Royal Oak's integrated bracelet and geometric case form make the silhouette immediately recognisable, yet the colour of a dial can alter the perceived character of that same architecture quite dramatically under natural light and indoor lighting. The dial must remain readable while acting as an expressive surface for one of the maker's most sophisticated mechanisms. Whether green is preferable to another dial shade is plainly subjective, but the documented mix of colours and metals helps explain how this particular reference differs from earlier or parallel versions.

Ownership means understanding the complication

A minute repeater requires care beyond that normally associated with an uncomplicated three-hand watch. Owners should become familiar with the manufacturer's instructions on winding, using the chime and arranging service through qualified specialists. The published product page advertises an international sales warranty and a programme through which eligible watches may receive an extended term, subject to the maker's conditions.

Careful handling matters particularly on a yacht, where movement, humidity and active days can tempt owners to treat every luxury wristwatch as sports equipment. A 20-metre resistance rating should prompt caution rather than confidence about regular water immersion. The strongest practical advice is to keep the watch within its published operating instructions, protect it when engaged in marine activity and use authorised service channels rather than relying on informal assumptions about durability.

A sound-led statement in contemporary watchmaking

The titanium Royal Oak Supersonnerie is not simply another green-dial release. Its official specification pairs a light-metal 42mm case with Calibre 2953, a complicated hand-wound mechanism built to reproduce the time through a distinctive acoustic system. The product is an example of watchmaking in which engineering, material selection and sensory experience are deliberately connected.

Collectors will eventually judge it by how it feels and sounds in person, the quality of its finishing and the clarity of information provided at the point of purchase. The company has not supplied a public list price for this reference, and market predictions would be conjecture. What can be established now from Audemars Piguet's own material is the watch's construction, detailed movement specification and the design choices that separate this green titanium version from its pink-gold counterpart.