Golf club head having a multi-material face and method of manufacture

A golf club head comprising:

• a striking face provided near a forward portion of said golf club head;
• a body portion connected to an aft portion of said striking face further comprising a crown, a sole, and a skirt,
• wherein said crown further comprises;
• a constant thickness portion located near said striking face, and
• a transition portion located aft of said constant thickness portion,
• wherein said striking face further comprises;
• a perimeter portion made out of a first material having a first density around a border of said striking face, and
• a central portion near a center of said striking face surrounded by said perimeter portion,
• wherein said central portion comprises a backing portion,
• wherein said central portion defines a pocket having a dovetail shaped undercut, and
• said pocket is filled with a face insert having a dovetail shaped protrusion around its perimeter, said dovetail protrusion adapted to engage said dovetail shaped undercut,
• wherein said face insert is made out of a second material having a second density,
• wherein said second density is less than said first density,
• wherein said dovetail shaped protrusion extends a distance (d11) between about 3 mm to about 6 mm into said dovetail shaped undercut,
• wherein said dovetail shaped protrusion forms an angle θ of between about 35 degrees to about 60 degrees with said striking face, and
• wherein said distance (d11) is generally greater than a thickness (d3) of said backing portion.