25mm golden ratio, suitable for a variety of wearing scenarios Exquisite but without losing presence: 25mm in diameter (about the size of a dollar coin), lightly embellished on the lapel of a suit, a knitted cardigan, a shirt collar, or the waist of a dress, instantly injecting the literary flavor of the Dutch Golden Age into your daily look. Antique Bronze: Using traditional Amsterdam electroplating technology, the surface is a deep antique bronze color, simulating the wind-etched metallic texture of Rotterdam's old harbor, revealing the mystery and romance of the 17th century seafaring era in an understated way. Matte and shimmering intertwined: after 32 hand-polished processes, the light reveals a delicate matte base and hidden metallic luster, avoiding the interference of reflections, and showing a more advanced texture. The totem of the Dutch Golden Age, a tribute to Delft blue pottery and canal culture Windmill and tulip openwork: the main body is carved with symmetrical patterns of traditional Dutch windmill blades and tulip buds, and the lines are as smooth as the reflections of the canals in Amsterdam, symbolizing the harmonious coexistence of nature and industrial civilization. Delft blue and white enamel color filling: the bud part is filled with classic Delft blue and porcelain white enamel glaze, the color contrast is like the Dutch national treasure blue ceramics, which is fired at 1150 to make it last for a long time. Micro-set diamond-cut crystals: the center of the windmill is inlaid with 4mm Swarovski crystals imported from Belgium (or optional natural topaz), with 72 cutting surfaces, refracting sparkling starlight at any angle, comparable to diamond fire color. Removable Wooden Charms: Some models come with a 15cm walnut and metal mix pendant with a miniature Dutch coat of arms (8mm diameter) engraved on the end, which can be removed and used as a necklace, bookmark or keychain, realizing four uses in one.