Ultra-thin watches at Watches and Wonders 2026 stole the show at this year’s Geneva fair. Therefore, W&W 2026 felt like a true celebration of extreme thinness. Furthermore, more ultra-thin watches appeared this year than ever before at a single fair. Based on this, thinness has become a real complication, not just a style choice. So, here are the six best ultra-thin watches of Watches and Wonders 2026.
1. Bulgari Octo Finissimo 37: The King of Thin Becomes More Wearable
The Bulgari Octo Finissimo 37 comes back in a smaller and easier-to-wear size. Therefore, the diameter drops from 40mm to just 37mm. Furthermore, a new movement called the calibre BVF100 powers this compact version. Additionally, it still delivers an impressive 72-hour power reserve.
As a result, the thickness rises slightly to 6.45mm. However, the smaller size makes it far more comfortable on the wrist. Moreover, a 37mm Minute Repeater version is also available for those who want more drama.
2. Cartier Santos-Dumont on Bracelet: The Slender Icon Refreshed
The Cartier Santos-Dumont proves that thin and elegant always go together. Therefore, at just 7.3mm thick, it stays one of the slimmest Cartier watches available. Furthermore, it comes back in 2026 with three new precious metal versions.
Options include yellow gold or platinum with a silver dial or an obsidian stone dial. Additionally, the movement uses the 430P hand-wound base from Piaget. Most importantly, a new metal multi-link bracelet adds a relaxed and stylish feel. Based on this, the 2026 Santos-Dumont becomes easier to wear while keeping its timeless look.
3. Chopard LUC XPS Prussian Blue: Perfect Thinness in an Exceptional Colour
The Chopard LUC XPS Prussian Blue follows the Forest Green edition from 2024. Therefore, it keeps the same slim profile of just 7.2mm. Furthermore, the sector dial and visible micro-rotor remain key design features.
In addition, this model is one of the most affordable in the LUC range. Based on this, it offers real value at this level of quality and finish. However, the 40mm size is a touch large for a watch this thin. Consequently, it still works well for anyone who wants genuine thinness at a fair price.
4. Jaeger-LeCoultre Master Control Chronomètre: Thinness With an Integrated Bracelet
The Jaeger-LeCoultre Master Control Chronomètre is a big step forward for the brand. Therefore, JLC enters the integrated bracelet world for the first time. Furthermore, the case is 8.4mm thick at 38mm wide and feels thinner than those numbers suggest.
Additionally, it carries a new HPG precision certificate that goes beyond standard COSC testing. Based on this, the in-house movement backs up those accuracy claims with real results. However, the dial and bezel design may feel a bit plain to some. In any case, the way it sits on the wrist is what truly impresses most wearers.
5. Patek Philippe Nautilus 5610P: Fifty Years of Iconic Thinness
The Patek Philippe Nautilus turns 50 in 2026 and marks the occasion in a quiet and refined way. Therefore, Patek releases three wristwatches and one surprising pocket watch. Furthermore, all three focus on the core Nautilus values: case shape, dial pattern and clean colour.
Each one shows only the time with no seconds hand for a pure and simple look. Additionally, the star of the group is the 5610P in platinum at 38mm wide and just 6.9mm thick. Based on this, the classic calibre 240 inside keeps the watch impressively slim. As a result, wearing this watch feels like a treat from the first moment on the wrist.
6. Vacheron Constantin Overseas Ultra-Thin: The Holy Trinity Is Now Complete
The Vacheron Constantin Overseas Self-Winding Ultra-Thin 2500V fills a long-standing gap for Holy Trinity watch fans. Therefore, Vacheron finally delivers a direct competitor to the Royal Oak Jumbo and the Nautilus 5811.
The new in-house calibre 2550 measures just 2.4mm thick with an off-centred micro-rotor inside. Furthermore, the platinum version measures 39.5mm wide and just 7.35mm thick, wrapping the wrist like a glove. Additionally, the salmon dial with no date display adds calm and beautiful aesthetic contrast to the technical excellence. However, the price remains the one obstacle that may give some buyers pause. For the latest luxury watch news, follow GearsME. For official details, visit the official Watches and Wonders website.
Special Mention: Konstantin Chaykin ThinKing Mystery
Konstantin Chaykin exhibited at the concurrent AHCI fair with the ThinKing Mystery. Therefore, this piece absolutely deserves a special mention in any conversation about watchmaking thinness. Furthermore, it measures just 1.65mm thick, making it the thinnest mechanical watch in history.
Additionally, it achieves this using only traditional manufacturing methods with no modern shortcuts. The Mystery edition adds transparent discs for the regulator display for a mesmerising visual effect. Based on this, the ThinKing Mystery remains one of the most astonishing achievements in independent watchmaking of 2026.
