With Panerai Registration and Service booklet dated October 2000, presentation box and bracelet change tool.
Preserved in very good, original overall condition, still retaining remainders of the protective case back, this "Luminor Marina" is one of the exceedingly rare and highly collectible so-called "Pre-Vendôme" models.
Panerai's renowned "Mare Nostrum" chronograph wristwatch was originally designed to be used by deck officers of the Italian Navy. Only very few of these watches were made in 1943 but due to the turmoil during the war, the model never went into production but remained at the prototype stage. It was not until 50 years later that Officine Panerai reproduced the Mare Nostrum chronograph.
The model is described and illustrated in The Panerai in Florence by Dino Zei, pp. 250 & 251.