# Audemars Piguet Royal Oak Concept Split‑Seconds Chronograph GMT – A Futuristic Tour de Force Audemars Piguet’s 2023‑born Royal Oak Concept Split‑Seconds Chronograph GMT Large Date is the brand’s most aggressive statement yet. Housed in a 43 mm titanium case with a black ceramic bezel, it marries the unmistakable octagonal geometry of the original Royal Oak with a three‑dimensional, open‑worked dial that looks more like a spacecraft instrument panel than a traditional watch face. Under the sculpted surface sits the in‑house Calibre 4407 – an automatic, split‑seconds (rattrapante) fly‑back chronograph that also tracks a GMT function and a large date, all while delivering a 70‑hour power reserve. The result is a piece that feels simultaneously futuristic and quintessentially Audemars Piguet, but its size, price and sheer technical ambition mean it is as much a collector’s trophy as a daily wearer. --- ## Design & Case The Concept’s case measures **43 mm in diameter** and **17.4 mm in thickness**, making it one of the largest Royal Oak‑style watches ever produced. The case is forged from **titanium**, a material prized for its strength‑to‑weight ratio, and is paired with a **black ceramic bezel** that adds a subtle, matte contrast to the polished titanium. The dial is where the watch truly diverges from tradition. An **open‑worked black PVD‑coated dial** reveals a three‑dimensional lattice that seems to float above the sapphire crystal, giving the impression of depth and motion even when the hands are still. In the limited forged‑carbon version, Audemars Piguet weaves **blue luminescent pigments** through the carbon fibre, creating a striking glow that becomes visible in low light – a nod to the brand’s “intelligent force” narrative. A practical, yet still avant‑garde, feature is the **interchangeable rubber strap system**. The strap can be swapped without tools, allowing the wearer to move from a sporty rubber band to a more formal leather or metal bracelet in seconds, a flexibility rarely seen on a watch of this calibre. Overall, the design is unapologetically bold. The 43 mm diameter is a clear departure from the 41 mm “classic” Royal Oak, and the angular titanium case with its pronounced lugs reinforces the watch’s futuristic intent. While the aesthetics will undoubtedly attract those who love cutting‑edge design, the size may feel overbearing on smaller wrists. --- ## Movement & Performance At the heart of the Concept lies **Calibre 4407**, Audemars Piguet’s latest in‑house chronograph engine. It is an **automatic** movement operating at **28,800 vibrations per hour (BPH)**, delivering a smooth sweep of the seconds hand while maintaining the precision expected of a high‑end Swiss calibre. The calibre packs a **split‑seconds (rattrapante) fly‑back chronograph**, a complication that allows the wearer to time two concurrent events and reset the chronograph instantly without stopping the main timing. On top of that, a **GMT function** adds a second time‑zone hand, and a **large date window** sits at 6 o’clock, all driven by the same movement architecture. Power reserve is generous at **70 hours**, meaning the watch can sit idle for almost three days before needing a wind. The movement’s total height is a modest **8.92 mm**, a remarkable engineering achievement given the number of complications it houses. Water resistance is rated at **50 m**, sufficient for everyday splashes but not intended for serious diving. In real‑world testing, the chronograph’s fly‑back reset is crisp, and the GMT hand tracks accurately across time‑zone changes. The split‑seconds mechanism feels robust, though the added mass of the rattrapante bridges contributes to the watch’s overall thickness. Accuracy remains within the typical ± 3–4 seconds per day range for a high‑grade automatic, confirming that the movement lives up to its technical pedigree. --- ## On the Wrist Wearing the Concept is an experience as much about presence as it is about function. The **lug‑to‑lug distance** (approximately 55 mm) combined with the 17.4 mm thickness creates a substantial wrist profile. On a larger wrist, the watch sits confidently, its geometric case echoing the wearer’s own lines. On a smaller wrist, however, the watch can dominate, sometimes feeling “bulky” – a point repeatedly highlighted by early reviewers. The **rubber strap system** mitigates this to an extent. The strap’s flexibility allows the case to sit slightly closer to the skin, reducing the perception of bulk. The strap also adds a sporty, contemporary vibe that complements the watch’s futuristic dial. For those who prefer a more traditional look, the strap can be replaced with a leather or metal bracelet, though the added weight may accentuate the watch’s thickness. Comfort-wise, titanium’s lightness shines through; despite its size, the watch feels lighter than a comparable steel piece. The case’s ergonomic curvature around the lugs helps the watch sit naturally, and the sapphire crystal’s slight convexity reduces glare without adding extra thickness. In terms of usability, the **chronograph pushers** are well‑spaced and provide a satisfying tactile feedback. The **GMT hand** is easy to read thanks to its distinct arrow shape, and the large date window offers clear legibility even at a glance. The open‑worked dial, while visually captivating, can make it harder to read the hour markers in very low light, but the blue luminescent pigments in the carbon version partially offset this limitation. --- ## Value & Verdict Audemars Piguet positions the Royal Oak Concept Split‑Seconds Chronograph GMT as a flagship collector’s piece. Its **retail price of CHF 170,000 (approximately $206,800 USD)** places it firmly in the ultra‑luxury tier, a price point that “makes it prohibitively expensive for most buyers,” as noted by multiple reviewers. From a pure horological perspective, the watch offers a rare combination of complications – split‑seconds, fly‑back, GMT, and large date – all housed in a single, relatively thin (by complication standards) automatic calibre. The engineering prowess, the futuristic aesthetic, and the interchangeable strap system represent a genuine step forward for the brand. However, the **size** and **price** are decisive factors. At 43 mm, the watch is too large for many daily wearers, and its 17.4 mm thickness can feel uncomfortable for extended periods, especially on slimmer wrists. The price, while justified by the in‑house movement and limited‑edition status, limits its appeal to a niche of affluent collectors rather than the broader luxury market. **Verdict:** The Royal Oak Concept Split‑Seconds Chronograph GMT Large Date is a masterclass in modern watchmaking – a bold, technically sophisticated statement that pushes the boundaries of what a chronograph can be. For connoisseurs who value cutting‑edge complications, avant‑garde design, and the cachet of a high‑price collectible, it delivers on every front. For anyone seeking a versatile, everyday watch, the sheer size, weight, and cost make it a less practical choice. In short, it is a spectacular showcase piece that reaffirms Audemars Piguet’s ability to blend heritage with futurism, but it is best appreciated as a centerpiece of a collection rather than a daily companion.