Ever since the financial crisis of 2008 stoked desire for classic, understated luxury watches, watchmakers have done battle to achieve record-breaking slimness. Today, Luxury Safes gives you a list of the top 5 thinnest luxury watches for men.

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Piaget is one of a handful of watchmakers known for its expertise in making thin movements. Since 1957, the firm has introduced more than a dozen timepieces that have pushed the limits of mechanical watchmaking. At Geneva’s Salon International de la Haute Horlogerie in January 2014, Piaget unveiled the Altiplano 38 mm 900P thin watch ($26,500), shown here in 18-karat white gold on a black alligator strap. With a total thickness of 3.65 mm, the model—whose movement and case have been combined to form a seamless whole—holds the record for the thinnest luxury watch for men in the world.

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A year after introducing the Altiplano 900P, Piaget debuted the Piaget Altiplano Chronograph 41mm timepiece ($28,100), shown here in 18-karat rose gold on a brown alligator strap. In keeping with the watchmaker’s impressive history of making ultrathin movements, the model boasts a total thickness of 8.24 mm, with a hand-wound flyback chronograph movement (caliber 883P) that measures just 4.65 mm. But don’t let the model’s slender dimensions fool you: In addition to a flyback chronograph function, the movement includes a small seconds and dual time-zone display.

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Founded in Geneva in 1755, Vacheron Constantin is the oldest watchmaker in continuous operation. In 2015, in honor of its 260th anniversary year, the firm created the Harmony collection of cushion-shaped luxury watches, including the Harmony Ultra-Thin Grande Complication Chronograph ($339,000), whose in-house Geneva Hallmark–certified movement stands a mere 5.2 mm tall. The limited-edition model comes in an 8.4 mm thick platinum case and is the thinnest mono-pusher, split-seconds chronograph on the market today.

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Earlier this year, Bvlgari rolled out its new Ultranero range of luxury watches with black DLC coatings, including the Octo Finissimo Tourbillon Ultranero ($115,000); its stealthy exterior—a 40 mm black DLC-coated titanium case that tops out at 5 mm—conceals BVL Calibre 268, the thinnest tourbillon movement in the world.

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At the Baselworld, Bvlgari presented the new Octo Finissimo Minute Repeater ($155,000), which now holds the title of world’s thinnest minute repeater. With amovement measuring 3.12 mm and a case totaling 6.85 mm, the model—available in a limited edition of 50 pieces—is a feat of mechanical engineering in a stunningly slim titanium case.

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