Born out of Tissot's legendary 1980s material revolution-which began with carving watch cases out of Swiss Alpine granite-the PearlWatch represents the organic zenith of that experiment. Rather than using stone, Tissot sculptors carved both the outer case ring and dial face out of a single piece of iridescent natural mother-of-pearl.

Accentuated by minimalist branding and Tissot's signature vibrant pop-art hands, the casing captures light with an ever-changing, cloud-like luster. Because it is crafted from natural shell, no two pieces in existence share the same pattern, making this a true one-of-one wearable sculpture.