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The table below is specific to the Ball-Hamilton grade 999B, which used its own sequence of serial numbers.
Almost all of the Ball-Hamilton 999B watches used a circular damaskeening pattern, but a small number of watches were produced in late 1954 featuring a straight line damaskeening pattern. Click here for an explanation and example of how to use our serial number tables. Click here for instructions on how to identify and open most common case types.
In general, this information is the same that you would get if you called our customer service department and asked them for the information.
A few reasons cited are: There is probably some kernel of truth to all of them.The Ball Watch Company did not manufacture watches directly, but the company helped develop the specifications for watches used in railroad service.Webb Ball established strict guidelines for the manufacturing of sturdy, reliable precision timepieces, including resistance to magnetism, reliability of time keeping in 5 positions, isochronism, power reserve, accompanied with record keeping of the reliability of the watch on each regular inspection.Be sure to use the serial number on the movement (the works) of the watch. At Renaissance Watch Repair, we are experts in the repair and restoration of Ball watches, and they are one of our personal favorites to work on!We are also always looking for Ball Watches to purchase.