Produced by SJ .The 3WF Top-tier Cartier Ronde de Cartier London Series WSRN0021 and W6700155 models are released simultaneously, featuring a couple's watch in both large and small sizes. They perfectly retain the elegant appearance and distinctive Cartier characteristics, including Roman numeral hour markers, sword-shaped blue steel hands, sapphire glass mirror, and a silver-plated pearlescent dial. The smooth and balanced design showcases a rich luster. Equipped with an original Swiss-imported quartz movement (the movement's appearance matches the original, with a large diameter of 36mm and a small diameter of 29.5mm), it comes with an original buckle made of imported Italian calf leather, compatible with the original version. SJ carefully presents exquisite recommendations for couple's Swiss quartz watches, showcasing ultra-realistic product photography.