The Bell of King Seongdeok is a large bronze bell, the largest extant bell in Korea. The full Korean name means "Sacred Bell of King Seongdeok the Great." It was also known as the Emile Bell, after a legend about its casting, and as the Bell of Bongdeoksa Temple, where it was first housed.
The bell was commissioned by King Gyeongdeok to honor his father, King Seongdeok. However, King Gyeongdeok never lived to see the casting of the bell, as he died in 765 A.D. The bell was finally cast in 771 A.D., during the reign of Gyeongdeok's son, King Hyegong.
Now stored in the National Museum of Gyeongju, the bell was designated as the 29th national treasure of Korea on December 12, 1962. It measures 3.75 meters high, 2.27 meters in diameter at the lip, and 12 to 25 centimeters in wall thickness. The Gyeongju National Museum weighed it in 1997, and found that its weight was 18.9 tons.