Investigators released footage of the unidentified man, who donned a bright red tracksuit with white stripes down the legs and a neck pillow.
The man allegedly demanded sex from the elderly woman around 12:45 a.m. on Sunday on Greenwich Street in Lower Manhattan, WABC-TV reported.
When the woman refused, he reportedly attacked her — punching her face so many times her teeth fell out. The New York Police Department said the man also left the woman with a broken eye socket.
He allegedly stole the woman's purse and fled the scene.
Anyone with information on the man is urged to contact NYPD Crime Stoppers — who have offered a reward of up to $2,500 — at 1-800-577-TIPS.