At the end of 19th century, Webb C. Ball established a system of time standardization for use by railroad companies in the United States. Ball Watch becomes the forerunner of the chronometry standard, meeting the highest standards of reliability and precision. This Moon Phase model has a RR11801 caliber. Includes 28 micro tubes of luminescent gas in hours, minutes and second hands on the blue dial and a luminescent moon phase indicator. Moreover, it has a nice stainless steel bracelet.