Four former Bronco Wine employees are suing the company, claiming that they were not paid for working overtime or given lunch breaks, Associated Press reported yesterday.

The four men have filed papers in the Napa Superior Court against the company, which produces Charles Shaw - more popularly known as Two Buck Chuck. They say that they were production supervisors at Bronco Wine's Napa and Ceres bottling facilities between March 2001 and 2004.

They say they only supervised tasks conducted by themselves and their work included tasks such as cleaning out and repairing machinery and switching over production equipment to meet new demands. The four say they worked more than 12 hours a day, sometimes seven days a week.

A lawyer for the company declined to comment on the matter, saying that he had not seen the lawsuit yet.