Two-side printing structure, dial using the same and printing method of two-side printing structure

A two-side printing structure has a base material (101) including a first face (101a) and a second face (101b) located on a side opposite to the first face (101a), a print (103) having a print layer provided on the first face (101a) of the base member (101) by thermal transfer printing and a print (3) having a print layer provided on the second face (101b) of the base member (101) by thermal transfer printing.