Panerai established as a supplier of professional diving watches to the Italian Navy. This year,Panerai watch launched the Luminor 1950 3 Days Chrono Flyback Automatic Ceramica.
Chrono Flyback Automatic Ceramica is distinguished by its 44-mm-diameter matte-black case, constructed of a synthetic ceramic based on zirconium oxide. This high-tech case material is up to five times harder than steel but substantially lighter in weight, as well as highly resistant to scratches, corrosion and extreme temperatures. Upon first strapping on the Ceramica — which comes on a sporty, natural brown leather strap with contrast stitching and a case-matching, black-coated titanium buckle , you’ll notice its undeniably big and masculine proportions. 
Like other Panerai models with the classical Luminor 1950 case, this one is equipped with the Panerai-patented crown protector, whose tiny locking lever can be engaged and disengaged with a flip of the thumb or forefinger. Locking and unlocking the device which one does in order to set the watch’s time and date and wind its mainspring — provides a bit of tactile fun while adding to the timepiece’s “tool watch” appeal. It’s almost a shame that, thanks to the Ceramica’s three-day power reserve, you don’t really need to perform this operation all that often.
Locked securely inside the sleek black case of the Luminor 1950 Chrono Flyback Ceramica is Panerai’s Caliber P.9100, which boasts two technical features beloved by chronograph geeks: a column-wheel switching mechanism and a vertical clutch. Twin spring barrels connected in series account for the three-day power reserve touted in the model’s name, and the variable inertia balance wheel oscillates at a speedy 28,800 vph, or 4 Hz. 
The black “sandwich” dial, another Panerai hallmark, has suitably large Arabic numerals and indices that make the watch eminently readable in all conditions — not to mention, as with most Panerai watches, recognizable from across the room
