Pocket Watch Database

Location: Washington, DC

Years of Operation: 1857-1895

Specialty: Invented the "American Chronometer"

Production Sizes: 18s

Serial Number Lookup

Company Timeline
The Washington Times, Washington, District of Columbia
Saturday, May 11, 1895

1857

In 1857, German immigrant Jacob Karr starts his business in Washington D.C. as a jeweler.

U.S. Patent #44317

September 20, 1864

Jacob Karr is issued a patent for his chronometer invention, designated as the "American Chronometer."

National Republican, Washington, District of Columbia
Friday, December 13, 1867

1868

By the late 1860s, Jacob Karr had established himself as a reputable jeweler and inventor.

The Morning Times, Washington, District of Columbia
Friday, September 20, 1895

1895

Jacob Karr retires from the jewelry business.

The Washington Post, Washington, District of Columbia
Thursday, March 22, 1917

March 21, 1917

Jacob Karr dies at his residence in Washington D.C.