Unexpectedly, Ruan's watch in the TV series is Van Cleef & Arpels brand. Because the plot needs to wear this brand of watch. The French luxury brand Van Cleef & Arpels belongs to Richemont Group. 1906, Alfred Van Cleef & Arpels and estelle Arpels founded the Van Cleef & Arpels brand in Fontaine Square; 19 16, designing "TouchWood" wooden jewelry works; 19 18, launching the list of fashionable waist chains; 1923, platinum diamond secret watch listed; 1933, creating a treasure chest cosmetic box; 1938, the first passepartout exchange jewelry was listed; 1954, launching a fun animal brooch; 1968 launched the Alhambra four-leaf lucky series; 1985, the snowflake series of gold and diamond works was born; In 2004, the series of painted butterflies was launched; 20 19, Treasureofrubies high-end jewelry series went on the market.