Gruen was, of course, the inventor of the "Curvex" and held the patents on the curved movement which prevented other companies from producing curved movements, but they were able to imitate the curved style by curving the case and crystal. The curved wristwatch was the thing to have back in the late 1930's so all the manufacturers had at least one in their line. The advantage for us today is that a customer can purchase an icon of the age without the higher price of the original Gruen. Bulova established a large following by producing reliable watches at a lower price point and this particular watch was one of their most successful curved gentleman's watches. It is a 21 jewel, yellow gold-filled case that measures 21mm in width, by 45mm lug to lug, by 10mm thick. It is fitted with a 16mm yellow gold-filled expansion band, but it can also accept a leather band. The case sides are beautifully engraved along the stepped case edges. The silvered dial has Arabic Numerals and a seconds bit (at the 6 o"clock position) that echos the case shape. This watch is in great condition and comes with our famous one year warranty for parts and labor so that you may buy with confidence!