There are plenty of green-dial watches out there, but few pull it off with the confidence of the AP Royal Oak Chronograph 26240ST. This isn’t the loud emerald or flashy racing green you might expect – it is a khaki tone that feels grounded, almost military-inspired but still belongs at the top table of luxury sports watches.
On the wrist, the color shifts between olive and dark green depending on the light, giving it a character you don’t tire of. It’s sporty but still easy to wear. Luxurious, but not overpolished. For someone building a collection, this is the kind of piece that reminds you AP knows how to stand out without being obvious.
To understand why this watch has become a standout among modern Royal Oaks, it helps to first look back at how the Royal Oak story began.
Tracing the Roots of the AP Khaki Green 26240ST
There’s a reason collectors treat the Royal Oak as a turning point in watch design. Back when it debuted in 1972, Gérald Genta dared to combine a steel sports case with an integrated bracelet.
Fast forward to 2022, Audemars Piguet streamlined the Royal Oak Chronograph for the modern era. They introduced the Calibre 4401, their own integrated chronograph movement, and this fuelled the expansion of the line’s colors and finishes. That’s where the Audemars Piguet Royal Oak Selfwinding Chronograph 26240ST came into play with a khaki green “Grande Tapisserie” dial – a shade rarely seen in the collection and instantly noticeable on the wrist.
Unlike the limited-anniversary models, this reference doesn’t carry a special rotor or marking, but what it offers is lasting appeal: a dial color that remains available today, matched with the Calibre 4401 and the steel bracelet that anchors the Royal Oak’s identity.
Now that we’ve looked at the history, let’s turn to the case and bracelet – the elements that define how this Royal Oak looks.
How the Case and Bracelet Shape Its Character
The 41 mm stainless steel case of the AP Khaki Green 26240ST is a classic Royal Oak. At 12.4 mm thick, it has the sharp octagonal profile that Gérald Genta drew in 1972, with flat brushed surfaces and polished bevels that catch the light cleanly. The bezel carries the same approach (brushed on its surface with high-polished edges) and is secured by eight white gold screws aligned around the dial. The setup is finished with a screw-down crown engraved with the AP logo, while the high-polished chronograph pushers sit within brushed guards. Together, they help secure the watch to 50 meters of water resistance. On the back, a glareproof sapphire caseback opens up the view to the in-house movement, complete with its 22k rose gold rotor engraved with “Audemars Piguet”.
The integrated bracelet is a signature part of the Royal Oak’s design. Its flat surfaces are brushed, while the high-polished edges catch the light as you move your wrist. The links flow naturally into each other down to the clasp, and the bracelet narrows slightly toward the clasp, which helps it sit comfortably without feeling bulky. It closes with a brushed folding clasp engraved with “Audemars Piguet”, secure in feel and straightforward to operate.
Once the steel framework is in place, it is the khaki green dial that draws the eye and gives this piece its identity.
The Khaki Green Dial That Stands Apart
The khaki green dial features AP’s signature “Grande Tapisserie” pattern, a grid of engraved hobnails that creates a detailed, three-dimensional look. Three subdials are arranged in a balanced tri-compax layout: the 12-hour counter at 3 o’clock, running seconds at 6, and the 30-minute counter at 9. Each subdial is outlined by a polished ring with fine white markers, mirrored by the white minute track that runs around the edge of the dial. A discreet date window sits at 4:30 with a matte khaki finish, blending neatly into the background.
Applied white gold hour markers and Royal Oak hands, both filled with luminescent coating, keep the watch easy to read whether you’re outdoors or in low light. The color itself is the real talking point: in bright light it takes on an olive tone, while in softer settings it shifts darker, even close to gray. That changing character is why collectors find this dial so engaging – it always offers something different each time you look at it.
Beyond the dial’s character, what truly anchors this piece is the movement inside – the Calibre 4401.
The Mechanics Behind the Royal Oak Chronograph
Inside is the Calibre 4401, Audemars Piguet’s in-house selfwinding chronograph movement. This integrated calibre runs at 4 Hz (28,800 vph), has 40 jewels, and is made of 381 individual parts with a total diameter of 32 mm. It delivers a 70-hour power reserve and is designed for both precision and durability.
The chronograph is built with a column wheel and vertical clutch, so the pushers feel crisp, and the seconds hand starts smoothly without the usual jump. It also features a flyback function, letting you reset and restart the chronograph with a single press – perfect for timing consecutive events. Add in hacking seconds for precise setting and a quick-set date, and the 4401 covers all the essentials.
Through the sapphire caseback, the movement shows off modern finishing with Geneva stripes, polished bevels, and a 22k rose gold rotor engraved with the AP logo. Collectors will also appreciate how the calibre fills the caseback fully, unlike earlier Royal Oak Chronographs that used smaller outsourced movements.
The mechanics are impressive, but a Royal Oak is more than specs – the real story comes when you wear it.
Wrist Presence and Comfort in a Steel Chronograph
Although the case measures 41 mm, the wide bracelet integration and lug-to-lug span make the 26240ST feel closer to 42–43 mm on the wrist. On medium wrists, it stretches toward the edges, but the slim profile and the way the links move easily keep it comfortable.
The watch has noticeable weight, something collectors often associate with quality, and it feels solid without feeling awkward. The bracelet narrows as it approaches the clasp, helping it sit naturally throughout the day. The clasp itself closes firmly and feels secure once in place.
To summarize the essentials, here’s a quick breakdown of the AP Khaki Green 26240ST main specifications.
The AP Royal Oak Chronograph Khaki Green Dial 26240ST at a Glance
| Feature | Details |
| Case | Stainless steel, 41 mm diameter, 12.4 mm thick, brushed with high-polished edges |
| Case Details | Octagonal shape, flat brushed surfaces with high-polished bevels, glareproof sapphire crystal front and back, screw-down crown with AP logo, chronograph pushers with brushed guards |
| Bezel | Octagonal bezel in stainless steel, brushed top with polished edges, secured by 8 white gold screws |
| Clasp | Stainless steel folding clasp, brushed finish, engraved “Audemars Piguet” text |
| Dial | Khaki green with “Grande Tapisserie” pattern |
| Dial Details | 12-hour counter at 3 o’clock, running seconds at 6 o’clock, 30-minute counter at 9 o’clock; polished rings with white markers; white minute track around dial; date window at 4:30 with matte khaki finish; white gold applied markers and Royal Oak hands with luminescent coating |
| Movement | Selfwinding Calibre 4401; integrated column wheel chronograph with vertical clutch and flyback function; 40 jewels; 381 parts; 32 mm diameter; 4 Hz (28,800 vph); 70-hour power reserve |
| On-Wrist Feel | Wears slightly larger than 41 mm because of wide bracelet integration; links move easily for comfort; solid weight without feeling awkward; bracelet narrows toward clasp for a natural fit; clasp closes firmly and secure |
Why the AP Khaki Green 26240ST Deserves Attention
When you compare chronographs, it’s the small details that often make the decision – how the case feels on the wrist, the response of the pushers, or the way the dial shifts in different light. The AP Royal Oak Chronograph 26240ST in Khaki Green nails each of these. The dial brings something uncommon, the movement delivers precision and ease of use, and the steel case with integrated bracelet ties it firmly to the Royal Oak’s history.
For collectors weighing their next move, this version shows how Audemars Piguet can introduce fresh colors and a modern movement while still honoring the lines Gérald Genta drew back in 1972.
Take a closer look in our tour video of the AP Royal Oak Chronograph Khaki Green Dial 26240ST and see if it deserves a spot in your rotation.
