Hermès gives Cape Cod watch a silicon semiconductor dial

Dials are created from a single 0.5mm thick plate, which is coated with a tiny 72-nanometre film of silicon nitride which becomes an intense blue color.

The history of Hermès Cape Cod watches began in 1991 when designer Henri d’Origny sketched the square within a rectangle formula for the case, lugs and dial.

More than 30 years later, Hermès is bringing a thoroughly modern concept to the Cape Cod “Crépuscule”, which has a dial made from the type of silicon wafer used in microelectronic semiconductors.

The dials are created from a single 0.5mm thick plate, which is coated with a tiny 72-nanometre film of silicon nitride which becomes an intense blue color.

Next is photo-lithography stage, during which the wafer is exposed to a blue light so as to print the pattern.

The process involves several successive baths, before a gold-coating stage, followed by other baths to remove any superfluous material.

Finally, the plate is precisely cut to the shape of the 29mm x 29mm steel case of the Cape Cod watch housing a Swiss-made quartz movement.

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