The National Watch Case Company was organized in early 1888 as a joint venture between Albert Booz and Alfred Humbert. The February and March 1888 issues of The Jewelers' Circular and Horological Review reported on this consolidation of Booz & Co. and Humbert's company.

Booz was formerly a partner at Booz & Thomas, while Humbert was the senior member of the Hurlburt & Sons firm.

When the company opened operations at 715-719 Arch Street in Philadelphia, it employed around 150-175 workers. According to reports, the company specialized in manufacturing 14K and 18K gold watch cases.

A short time after commencing production, the company began making seamless gold rings using a patented process.

In 1890, there was an embezzlement scandal when two employees were discovered to have stolen gold from the company.

The same year, the company was awarded nearly $18,000 in the case against the Atkinson Brothers in Philadelphia during the watch club collapse. A few months later, the company filed another suit for $4,300 to receive payment for additional promissory notes.

In July 1890, there was a chemical explosion at the factory. However, the damage was minimal.

On October 15, 1890, possibly due to mounting financial issues with the Atkinson Brothers and production problems, leadership decided to dissolve the company.

Albert Booz sold the existing stock under his new operation - The Federal Watch Company, at 1026 Arch Street.

The July 13, 1892 issue of The Jeweler's Circular reported that the firm had been transferred to Alfred Humbert, who continued the company under the name The National Watch and Jewelry Manufacturing Company. However, there is no evidence that this company proceeded with manufacturing after 1892.