Teddy Baldassarre
The 19 Thinnest Watches in the World in 2026
There have always been thin watches, and always watchmakers who have dedicated their craft to reduce the essentials of timekeeping, as well as other additional complications, into as slimmed down and wearable a package as humanly (and horologically) possible. Lately, however, as 21st century technological developments impact watchmaking as they have every other industry, it seems there are more exceptionally thin watches than ever before -some of them aimed at a customer simply seeking an elegantly understated and luxuriously lightweight timepiece for regular wear, others almost defiantly unobtainable to all but a few, but intended to boldly shatter records for both thinness and complexity. We offer some of both types in our roundup of ultra-thin watches below (which we're defining as 10mm thick or under, based on average watch sizes), in ascending order of case thickness, starting from the top with the current category record holders. Under 2mm Richard Mille RM UP-01 Ferrari (1.75mm) In the world of high horology, Richard Mille has been pushing the envelope in the areas of materials, technologies, and (let’s face it) prices for quite some time. In 2022, the brand probably best known for making the watch that tennis champ Rafael Nadal wears to play in Grand Slams entered a new partnership with Ferrari, and the result was, to many watch enthusiasts’ surprise, the current record-holder for world’s thinnest watch. The RM UP-01 Ferrari is an almost unimaginable 1.7...