Westclox Dax Style Series
The Dax pocket watch was introduced in 1910. 9 major case styles were made. The last two Dax styles, starting in the 1970s, have plastic cases.
There are 12 styles in the Westclox Dax Style Series
Round bow, no second hand.
1910 - 1921
Round bow, second hand.
1928 - 1929
Oval bow, oval pendent
1929 - 1931
Oval bow, rectangular pendent
1931 - 1932
Metal dial, sunburst pattern in chapter ring
1932 - 1934
Vertical stripe dial
1934 - 1938
Metal dial with gray center, dial looks too small for case.
Made for about 6 months in 1938
Metal dial with light blue center
1939 - 1942
Radial numerals, pattern of small squares in center of dial.
1956 - 1959
Radial numerals, white dial background (no pattern in center).
1959 - 1962
Plastic case, oval bow. Red, gray or black. May or may not say Dax on the dial.
1971 - 1973
Plastic case, trapezoidal bow. (with or without second hand). Red, gray or black.
1973 - 1979 and ca. 1990
The trademark DAX was issued to Western Clock Co. on April 20, 1915. The registration contains the statement "The trade mark has been continuously used in the business of said corporation since the month of May, 1910."