Sea-Gull 海鸥 watches, like some other brands, were sometimes made to commemorate organisations or events. The China Rail commemorative is desirable to collectors in part because it has a unique dial. Many examples appear to be more recent re-creations, however. It has been said that the much rarer original articles have

郑州铁路局  (Zhengzhou Railway Bureau) and a number on their casebacks. These two have the appropriate inscription.