One of the nicest things that can happen in any domain of design is to be hit with something that is both very unexpected and very successful. Probably the last thing in the world I’d have expected to happen with the 900P is for it to become the 900D – I suppose mostly because the technical message from the watch is so powerful. But here it is, blinking in the sunlight, so to speak – a watch not only with a very strong technical statement, but one in which the extremes to which it carries technical watchmaking support, and in fact are essential to, a strong aesthetic statement as well.

The Piaget 900D: “World’s thinnest hand-wound mechanical high jewelry watch,” according to Piaget. Integrated movement and case. 38 mm x 5.65 mm overall, 48-hour power reserve, 21,600 vph, running in 20 jewels. 38 baguette and 266 brilliant cut diamonds. Dial set with 33 baguette cut diamonds, crown set with one brilliant cut diamond. Snow-set movement. Water resistance 2 ATM. Price, $165,000. Browse all Piaget watches online here.

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