Jon works for a major bank. The revised employee handbook that he received 5 years ago says that all employees with 25 years of service will receive a retirement party. He is about to hit 25 years of service and has announced his retirement. His manager tells him that the company, on the basis of his years of service, will throw him a party and present him with a gold watch. Jon retires on his 25th anniversary, and his manager announces that the company will not throw the party or give him the watch. Legal recourse?