The Hamilton Watch Company is a brand of the Swatch Group, a Swiss watch company based in Bienne, Switzerland.The Hamilton Watch Company had its genesis as an American watch design and manufacturing company, which incorporated in 1892 and produced its first watch in 1893.After its formation, the Hamilton Watch Company went on to manufacture and market pocket watches and wristwatches, ending American manufacture in 1969.Through a series of mergers and acquisitions, the Hamilton Watch Company became a diversified conglomerate itself and was subsequently integrated into the Swatch group.The precursor to the Hamilton Watch Co., the Lancaster, Pennsylvania based Keystone Standard Watch Co., was started by Abram Bitner in 1886 with the purchase of Lancaster Watch Company's factory.Keystone manufactured watches featuring a patented "Dust Proof" design that used a small acrylic "window" to cover the only opening in the plate of the movement.I'm not NPR; I get no government hand-outs and run no pledge drives to support my research, so please always use any of these links for the best prices and service whenever you get anything. It has 21 jewels, 16 size, is factory adjusted to keep accurate time in all 6 positions and is lever-set. The sample seen here has gained only 1.4 seconds from when I set it to standard time on 03 November 2013 to when I'm writing this three months later on 05 February 2014.
There is a sub seconds dial at six o’clock and a 30 minute register at twelve o’clock.
I am slowly adding serial number tables to this site. With the exception of BULOVA, the numbers on the inside and outside of the CASE ITSELF are ONLY for identification purposes - they mean nothing.
Serial number records are available for many of the old pocket watch companies like AM Waltham, Elgin, South Bend etc. The number you need is the serial number stamped on the MOVEMENT (i.e the inner workings).
At introduction in late 1940, it was advertised boldly as "America's finest and most accurate railroad watch." It was also the last railroad watch, made and certified after others went out of production in the 1950s, 1960s and 1970s.
The Hamilton 992 and 992B may be the most popular railroad watches ever made. Hamilton sold the same movement with your choice of many different cases and many different hands and faces.