the first tudor watches produced in the 1920s and 1930s bore a tudor signature on the dial, with the horizontal bar of the t lengthened above the other letters. on some rare pieces, the name rolex also appears. around 1936, the logo changed to the name in gothic characters accompanied by a shield bearing the tudor rose, emblem of the long-reigning english tudor dynasty. in 1947, one year after the official launch of tudor montres sa, the shield was removed and the rose appeared alone with the brand name. from 1969 on, the shield resurfaced without the rose. the shield remains as the logo on all tudor watches while the rose is now used on the winding crowns.