The large "wihan", the highest building within the temple complex, houses an immense gilded 19 meter high seated Buddha from 1334 CE. This highly revered Buddha statue is called "Luang Pho Tho" () by Thais, and "Sam Pao Kong" () by Thai-Chinese. The statue is regarded as a guardian for mariners. Allegedly, prior to the destruction of Ayutthaya by the Burmese in 1767 CE, "tears flowed from the sacred eyes to the sacred navel". The statue has been restored several times in history. King Mongkut named the statue "Phra Puttha Thrai Ratana Nayok" after its restoration in 1854 CE.