2026 marks the 30th anniversary of the Vacheron Constantin Overseas collection and the 50th anniversary of the Patek Philippe Nautilus series; to commemorate these milestones, both brands have released special limited-edition timepieces. A shared characteristic of these watches is that they are powered by ultra-thin automatic movements, making them the slimmest models in the history of their respective collections https://www.firstwatchclone.co/.
Vacheron Constantin Overseas Ultra-Thin Self-Winding Watch (Ref. 2500V / 210P–H028). This timepiece is powered by the brand’s all-new in-house Caliber 2550—a movement measuring a mere 2.4 millimeters in thickness. The overall case thickness is kept to a slim 7.35 millimeters. Breaking away from the traditional "three-hand plus date" layout typically found in the Overseas men's collection, this model features a two-hand, no-date dial configuration that exudes an air of refined simplicity.The Vacheron Constantin Caliber 2550 is an automatic movement featuring a micro-rotor crafted from 950 platinum, adorned with an engraved sunray motif. Operating at a frequency of 21,600 vibrations per hour, the movement boasts a power reserve of approximately 80 hours. To achieve exceptional slimness, the design retains only the essential hours and minutes functions. This limited-edition timepiece is housed in a 39.5 mm diameter case made of 950 platinum—a size introduced to the Overseas collection for the very first time. Furthermore, the sunray-brushed salmon-colored dial stands as a defining feature of this model. With its distinctive blend of gold, pink, and orange hues, this color scheme is instantly recognizable and ranks among the most popular dial colors in the watchmaking world in recent years.
The Patek Philippe Nautilus collection introduced a total of three limited-edition timepieces to mark its 50th anniversary: a 38mm platinum model (Ref. 5610/1P-001), a 41mm white gold model (Ref. 5810/1G-001), and a 41mm white gold model paired with a blue composite strap (Ref. 5810G-001). These models are limited to 2,000, 2,000, and 1,000 pieces, respectively. Although their case diameters and materials vary, all three are powered by the Patek Philippe Caliber 240 self-winding movement, which measures a mere 2.53mm in thickness. Furthermore, they feature a two-part case construction—derived from the original replica Patek Philippe Nautilus model—in which the caseback connects directly to the bezel, thereby keeping the overall watch thickness to a slim 6.9mm.Befitting their status as 50th-anniversary commemorative editions, the movement's 22K gold mini-rotor is engraved with the number "50" and the inscription "1976 – 2026." The movement operates at a frequency of 21,600 vibrations per hour and offers a power reserve of 48 hours. The dials of these 50th-anniversary Nautilus models feature a two-hand layout, omitting both a seconds hand and a date display. In terms of aesthetics, the watches showcase the collection's classic horizontally embossed dial, rendered in a blue-to-black gradient finish, and are paired with three-dimensional 18K white gold hour markers set with baguette-cut diamonds—details that significantly elevate their sense of luxury.



