Accompanied by Panerai Registration and Service booklet and International Repair Guarantee.
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 first examples, such as the present watch, made in a small series in 1993.
The model is described and illustrated in The Panerai in Florence by Dino Zei, pp. 250 & 251.