Officine Panerai P.4000

Officine Panerai announced the launch of the P.4000 caliber, their first automatic movement that features a decentralized oscillating weight. The new caliber is completely developed and made in the manufacture in Neuchatel.

By opting for an off-centered micro-rotor – the rotor is smaller than the diameter of the watch – and by inserting the rotor within the movement rather than superimposing it, Panerai managed to substantially reduce the thickness of the movement to only 9,95 mm.

With a diameter of 13¾ lines (31 mm), the new calibre has a large bridge which is flanked by the small oscillating weight winding in both directions and the balance cock. The latter has twin supports, more secure and stronger than the customary overhanging balance cock with a single support. The supports have two screws for adjusting the vertical play of the balance staff. The balance wheel oscillates at 28,800 alternations per hour (equivalent to a frequency of 4 Hz). It is a balance wheel with variable inertia, that is, with screws enabling the rate to be adjusted precisely without altering the relationship of the balance spring and the bridge. Fitted with 31 jewels, the movement has a power reserve of at least three days, as a result of having two spring barrels connected in series. It is also fitted with the device which stops the balance wheel when the winding crown is pulled out, for synchronising the watch exactly.

A closer look at the P.4000 used for PAMs with steel case.

The P.4000 calibre is produced in two versions which differ in the kind of finish, the engraving and the material of the micro-rotor.

The first, for models with a steel case, has bridges with a horizontally brushed finish, blue engraving and an oscillating weight of tungsten alloy, with relief decoration on the matt surface.

The second version is for the models with a gold case and it has bridges with a circular brushed finish, gilded engraving and a rotor of 22 carat gold, with clous de Paris hobnail finish and polished decorations in relief on the brushed surface.

Radiomir 1940 3 Days Automatic in steel (PAM572) and red gold (PAM573)

Radiomir 1940 3 Days Automatic Acciaio PAM572

The first PAM to be powered by the new P.4000 caliber is the Radiomir 1940 3 Days Automatic, the first time this model is equipped with an automatic movement.

With a diameter of 45 mm, it comes in two versions, stainless steel – acciaio PAM572 or red gold – oro rosso PAM573. It is interesting to mention that the red gold used for PAM573 its unique tone thanks to the gold alloy with a higher proportion of copper than usual and a small amount of platinum to reduce any oxidation of the metal.

The steel version is water resistant to 100 m, while the red gold to 50 m and they come with a black or brown alligator strap.

Price:

Radiomir 1940 3 Days Automatic Acciaio PAM572 – $11,600

Radiomir 1940 3 Days Automatic Oro Rosso PAM573 – $25,800

More about Panerai at www.panerai.com.

Radiomir 1940 3 Days Automatic Oro Rosso PAM573

A side view of the Radiomir 1940 3 Days Automatic Oro Rosso (PAM573)

The domed sapphire crystal of the Radiomir 1940 3 Days Automatic.