This slender timepiece packs a powerful punch.

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Ultra-slim watches are incredibly difficult to manufacture, watchmakers say, even though they may not seem like a feat of engineering. The work isn't only extremely fine and delicate, but also requires a level of attention to detail and quality control that differentiates the good from the great when it comes to building a robust and precise timepiece with parts that are two to three times thinner than the standard.

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There is no doubt that Piaget's Altiplano Tourbillon Infinite Blue trio of watches is the undisputed master of ultra-slim watchmaking. Piaget's Altiplano Tourbillon Infinite Blue trio is the undisputed master of ultra-slim watchmaking at its best. This watch is the Altiplano Flying Tourbillon created to celebrate Piaget's 60th anniversary of the ultra-thin movement of 1957, the manually wound caliber 9P, created in recognition of this important milestone.

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There are three watches in the Altiplano Flying Tourbillon series, and they are identical to Piaget's Altiplano Flying Tourbillon watch for 2017. In addition to the distinctive dial layout of each watch in this series, with the time displayed at eight o'clock and the tourbillon displayed at two o'clock, this series also features an ultra-thin and hand-wound flying tourbillon movement.

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One of the distinct characteristics of these watches is the blue sunburst PVD dial that is embossed with a diamond-set infinity symbol that has been shaped like a cage and which has been offset by a subdial that is off center. In addition to the blue sunburst PVD dial that has been embossed with a diamond-set infinity symbol that has taken on the shape of a cage and with an offset subdial, there is one distinctive feature that makes these watches stand out from the rest of the market.

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There are three editions of the Altiplano Tourbillon Infinite Blue Limited Edition 38, all of which come in 41mm 18-karat white gold cases with blue alligator straps. A limited edition of 38 pieces is available in a limited edition of 135 diamonds totaling approximately 2.29 carats and retails for $138,000 with a bezel, lugs, buckle, and dial set with 135 diamonds totaling approximately 2.29 carats.

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Infinite Blue Limited Edition 18 is comprised of 276 diamonds composed of a total of 3.41 carats that creates a hypnotic swirl on the dial of the watch, giving the watch a more festive flavor because it is limited to 18 pieces. This watch retails for $166,000.

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There is a baller in the Piaget Altiplano Tourbillon Infinite Blue Limited Edition 8, the last piece of the collection. In addition to its baguette-cut stones on its dial and bezel, the model features brilliant-cut stones on the lugs, buckle and case, totaling 6.05 carats. In a limited edition of eight pieces, it retails for $223,000 and retails for $23,000.