Your search for "sawtooth" revealed the following:
Black-White Houndstooth Wool
SGD 170.00
Made of pure lightweight wool from Italy, this lightly lined six fold tie makes a great conservative fall/winter tie. Houndstooth check is also a traditional wedding tie pattern, an ideal choice for grooms and wedding attendees alike in the colder months.
Black-White Melange Houndstooth
SGD 190.00
Made of a wool/silk blend woven in Huddersfield, England, this lightly lined four-fold necktie has a dry, soft hand with a slubby texture from the silk yarns. The mid-sized houndstooth design is a proper classic, and the lighter weight makes this tie usable all year round.