The Logo OP represents the stylised beginning letters O and P of Officine Panerai name, but not only.
Do you know which is the meaning of the two arrows, one towards up and one toward down?* It’s very simple and intuitive. Officine Panerai, since the origins and up today, has been always specialist in manufacturing underwater products and landing aid systems. The firsts (wrist watches, compasses, depth-meters, tank level probes, mechanical timers for underwater mines and many others) were used under the sea. The seconds (Deck landing systems, Helipad lighting systems, Portable landing systems) were used on surface, for those arriving from the sky. Here is explained the meaning of the two arrows: the one toward down shows the underwater products, the one toward up shows the products for who arrives from the sky.
-The OP Logo was born at the beginning of years ’80, designed by an Architectural Office of Florence and, in the first drafts, had a rounded form; Eng. Dino Zei (C.E.O. Officine Panerai since 1972 until 1999) did not like this Logo, as it was designed, so him, together with the Officine Panerai Technical Department responsible, had the idea for this definitive version (here described) adding the two stylised arrows-. The OP Logo has been sold to the Richemont group, at that time Vendome group on 1997, with the watches- torches-compassess and depth-gauges brand, the patents, the original drawings and the watches store. Since 1997 the old Officine Panerai changed its name into Panerai Sistemi Spa. On 1999 the Panerai Sistemi Spa has been sold to Calzoni Spa of Bologna, that absorbed all its industrial and productive activities. At present Panerai Sistemi is a brand of Calzoni Spa, utilized for all ex-Panerai products. The Richemont group, has re-utilized the OP Logo at the end of the 2003 when it appears on the special edition, introduced in 200 units, of the Luminor Marina 44mm -Fans Panerai- (PAM 195), on the dial and on the case-back and later of the Luminor 44mm -For Paneristi- (PAM 360) introduced in 2010 in 300 units, more to the limited edition of the historic collection models Luminor 44mm: Base (PAM 000) + Marina (PAM 005) and Radiomir 45mm (PAM 380) introduced in the 2004, to the mod. Radiomir California 3 Days 47mm (PAM 424) introduced in the 2012 and to the mod. Luminor 1950 3 Days 47mm (PAM 617) and Luminor + Luminor Marina 44mm (PAM 630-632 and 634 -For Paneristi-) introduced in the 2015.