Piaget's "Protocole" is a model characterized by a rectangular case and a sophisticated design. It is mainly made of yellow or white gold, And many models have luxurious decorations such as a diamond-set bezel. It mainly uses a quartz movement, And its advantages are a thin case and a comfortable fit like a bracelet. It is currently discontinued and can only be found on the second-hand market, And it is a high-end jewelry watch that stands out for its sophisticated craftsmanship and classic beauty unique to Piaget.

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