Serial Numbers

Serial Number Date
000001-003937 1897-1899
003938-016459 1900-1904
016460-059641 1905-1909
059642-097528 1910-1914
097529-136237 1915-1919
136238-159719 1920-1924
159720-194237 1925-1929
194238-213894 1930-1934
213895-256235 1935-1939
256236-472765 1940-1944
472766-559240 1945-1949
559241-598659 1950-1954
598660-638906 1955-1960
638907-673459 1960-1964
673460-743137 1965-1969
743138-780288 1970-1974
786289-827760 1975-1979
827761-857063 1980-1984
857064-868171 1985-1989
868172- 1990-


Notes on Serial Number Data

  1. Most clocks are numbered on the case and the movement. These numbers in most all cases match, but occasionally movements were switched by the factory or the retailing jeweler.
  2. The serial number record data shows the sale date of a given serial number. Prior to 1910 inventory control was not optimized and finished clocks remained in company inventory for years. The dates above show the average sale date for a given serial number. Specific clock sale dates may vary significantly.
  3. Serial numbers were issued consecutively as movements were manufactured in groups of like type movements. These were then fitted to cases to meet special orders or for general stock.
  4. The record books appear to have been transcribed from working lists by clerks. Occasionally omissions and errors are noted.
  5. Prior to 1915 the record data lists serial number, date sold, customer, movement type, and case size, finish, and type. After 1915 case size, finish, and type were generally omitted.


 
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