How much watt needed for this build?

[JustAnUsername]

Ryzen 5 1600
Ryzen 5 1600 stock cooler
MSI B350 TOMAHAWK
GTX 1060 (Asus ROG STRIX)
16GB DDR4 (Corsair vengeance LPX)
Western digital caviar blue 1TB (7200RPM)
Sandisk SSD Plus 240GB
4x 120mm fans
Cooler master octane keyboard+mouse

 

[jaslion]

Ryzen 5 1600
Ryzen 5 1600 stock cooler
MSI B350 TOMAHAWK
GTX 1060 (Asus ROG STRIX)
16GB DDR4 (Corsair vengeance LPX)
Western digital caviar blue 1TB (7200RPM)
Sandisk SSD Plus 240GB
4x 120mm fans
Cooler master octane keyboard+mouse

Get a seasonic s12II 520w and you are good to go. It's a good quality unit for a good price.