Panerai · Manual Wind

OP I

Panerai's designation for the ETA/Unitas 6497-2, the 16-and-a-half-ligne pocket-watch calibre whose size made the brand's large cases practical when Panerai reached the public market in 1997. The OP I is the simplified execution, with the small-seconds train left out. That is why it appears in the Luminor Base, the model with an unbroken dial and no subdial at nine o'clock.