March 20th every year. Inquiring about the Watsons Black Card Anniversary Ceremony Announcement shows that as of June 19, 2023, the Watsons Black Card Anniversary Ceremony will be held on March 20 every year and end on April 5. Therefore, the Watsons Black Card Anniversary Ceremony is held every year. March 20th. The trademark Watson is affiliated to A.S. WATSON TM LIMITED. The applicant's address is Vistra Corporate Service Center, Victoria District II, Luther Town, Todola City, British Virgin Islands.