The case diameter of this reference is 66 millimeters including the crown protecting device. It was made by Panerai for the Egyptian navy in the mid 1950′s, which received the nickname “Egiziano Grosso” because of its huge size.
Three modern Panerai watches have this symbol of Panerai DNA printed on their dials: the famous PAM203 (2005) with vintage Angelus movement and two Special Editions with 8 days inhouse movements (P.2002/7): PAM339 (2010) and PAM341 (2009). Another rare Special Edition – PAM267 (2007) - is using the same vintage Angelus movement as the PAM203, but without the “8 Giorni Brevettato” symbol printed on the dial.
http://www.vintagepanerai.com/2010/06/21/the-legendary-8-giorni-symbol/
