When King Taksin the Great sent Chaophraya Mahakasatsuek to successfully defeat Vientiane, he also brought a group of people and the Emerald Buddha from Vientiane to Siam. Some Vientiane people settled down in Huai Tako on the bank of the Nakhon Chai Si River. After the community was stable, the villagers built a temple in 1815 during the reign of King Rama I the Great. While digging the ground, they found the head of a golden Buddha image and subsequently named the temple Wat Hua Thong (The Golden Head Temple).
Later, the state dug the Chedi Bucha Canal as a pathway for the King to pay respect to Phra Pathom Chedi which led to the villagers moving to live along the canal. Wat Hua Thong was also relocated for convenience. Luangpho Noi Khanthachoto, a famous monk who preached about Phra Rahu swallowing the moon, renamed the temple Wat Sisa Thong.

Source: Temples in Thailand