The 0-Size case was introduced in uly 1892. Within a few months, The Jewelers' Circular reported there were 25 patterns avaialble in the new 16-Size line. The new line of cases was successful in the market, and the 16-Size case was introduced in March 1891. The 6-Size case was introduced in the fall of 1890.
The initial production was likely 18-Size. The first cases at the Wadsworth factory were finished in June 1890 under the name 'H.A. The Wadsworth Watch Case Company was started as H.A.
