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 ColumbiaSaturday, 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 ColumbiaFriday, 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 ColumbiaFriday, September 20, 1895
1895
Jacob Karr retires from the jewelry business.
The Washington Post, Washington, District of ColumbiaThursday, March 22, 1917
March 21, 1917
Jacob Karr dies at his residence in Washington D.C.