This elegant vintage women's wristwatch is from the 1940s.  Gold-filled case with Stainless Steel back and gold-filled Solar Expansion band are still in pristine condition.  The 21 jewel movement is signed Brenzikofer & Co., SA, Swiss, Incabloc, curved "ROK" Crystal.  Dust-tight crown.  Solar brand watches are fine swiss made watches that were sold exclusively through the Eaton's company.  This watch works.  What a great way to touch the past.