Patent attributes
A coating region 6p of a crown 6 has a maximum saturation portion SR1 at which a saturation is a maximum value Cmax, a high saturation region SR2 which includes the maximum saturation portion SR1 and in which a saturation difference from the saturation Cmax is not greater than 15, and a low saturation region SR3 in which a saturation difference from the saturation Cmax is greater than 15. When a straight line that passes through a face center Fc and extends in a face-back direction is defined as a straight line C, an area of a portion of the high saturation region SR2 at a toe side with respect to the straight line C is denoted by St, and an area of a portion of the high saturation region SR2 at a heel side with respect to the straight line C is denoted by Sh, then St>Sh.
