19th Century, Mandalay, Bhumisparsha Mudra, Sitting, Buddha Statue

Hello my name is toby and i have a 19th Century Mandalay Buddha Statue

I want to sell this Statue to an art seller and he tels me that it is an copy of an bumese buddha and he wants to give me 400 euros butt i have bought this statue from an old man 15 years ago and he tels me that this statue is an antiques 19th Century Burmese Mandaley Buddha.so can anyony tell me please is this is right.thanks in advance.

Size and Dimensions of this item: 71cm x 60cm x 43cm

The eyes are from porcelein

the paint is 24krt gold

and its all wood

Thanks