Movement Automatic mechanical, P.4000 calibre, executed entirely by Panerai, 13¾ lignes, 3.95 mm thick, 31 jewels, Glucydur® balance, 28,800 alternations/hour. KIF Parechoc® anti-shock device. Power reserve 3 days, two barrels. 203 components. Off - centered oscillating weight
Functions Hours, Minutes, Small Seconds
Case Diameter 45 mm, AISI 316L Polished Steel
Bezel Polished Steel
Back See - through sapphire crystal
Dial Black with luminous Arabic numerals and hour markers. Seconds at 9 o'clock.
Water Resistance 10 bar (~100 metres)
Strap Alligator, Black, Beige, 24/22 MM Standard
* The trademark Velcro® and Coramid® are not property of Officine Panerai.
* The trademark Velcro® and Coramid® are not property of Officine Panerai.
The Radiomir 1940 3 Days Automatic Acciaio revives the design of several historic models created by Panerai in around 1940; it has a diameter of 45 mm and it is made of AISI 316L stainless steel. The lugs are formed from the block of the case and are perfectly adapted to the shape of the wrist, ensuring the greatest comfort in wearing the watch. The large, polished bezel frames a classic dial which ensures excellent legibility, thanks to its minimalist design and its structure of superimposed discs with the luminous material between them, which gives the hour and baton markers formed in the upper plate great intensity. As has been traditional with Panerai since the end of the 1940s, the seconds hand rotates in a small counter positioned at 9 o’clock on the black dial. The new P.4000 calibre is the first Panerai automatic movement with an off-centre micro-rotor. This means that the rotor is smaller in diameter than the calibre itself: a sophisticated technical solution which enables the movement – and therefore the watch – to be much thinner. In this model the oscillating weight is made of tungsten, a shiny, high density metal, qualities which make it aesthetically appealing and ideal for applications requiring a material with a high specific weight. Visible next to the oscillating weight is the balance wheel, which oscillates at a frequency of 4 Hz, and a large bridge concealing much of the mechanism, making the structure of the movement exceptionally stable. With two spring barrels connected in series, the P.4000 calibre has a power reserve of at least three days, and it is also fitted with the device which stops the balance wheel when the winding crown is pulled out to set the time, helpful for synchronising the watch exactly. The Radiomir 1940 3 Days Automatic Acciao is water-resistant to 10 bar (~100 metres) and it is supplied with a black alligator strap.
Panerai watches are produced to very high standards of quality. It is worth remembering that the mechanical parts run 24 hours a day when used, so the watch must undergo regular maintenance to ensure long life and good operation.
Have watch checked periodically for water-resistance by an Authorized Panerai Service Centre and renovate it every two years with regular servicing, or whenever the watch has to be opened. The restoration of water-resistance necessarily involves replacing the seals in order to ensure the maximum water resistance and protection. Where the watch is used in underwater sports activities, it is recommended that it should be checked every year before the underwater activities begin.
Have the movement of watch checked periodically by an Authorized Panerai Service Centre in order to preserve its perfect operation. If the watch has a tendency to gain or lose time to a significant degree, the movement may need to be overhauled. The movements are designed to withstand temperature variations between -10°C and +60°C (14°F and 140°F). Outside this range of temperatures, operational variations exceeding those set out in the specifications of the movement may be noticed. In addition, there is a risk that the lubricants contained in the movement may deteriorate, resulting in damage to some of its parts.
CLEANING THE EXTERIOR
To keep the exterior in perfect condition, we recommend washing Panerai watch with soap and warm water, using a soft brush. After this operation, and also after immersion in the sea or a swimming pool, carefully rinse the watch with fresh water. All Panerai watches can be cleaned with a soft, dry cloth.
Panerai straps must be washed in warm water and left to dry. It is important not to dry them on a hot surface or expose them to direct sunlight, because the rapid evaporation of the water could damage their shape and quality. After each immersion in the sea or a swimming pool, carefully rinse the strap with fresh water. It is recommended that the strap and the buckle should be replaced by an Authorized Distributor or a Panerai Service Centre, in order to avoid any problems caused by incorrect replacement. Only an Authorized Distributor or Panerai Service Centre can guarantee the use of genuine Panerai straps, properly designed to fit the dimensions of the case and manufactured according to the quality standards of the brand. All alligator leather used by Officine Panerai comes from farms in Louisiana, USA. Officine Panerai’s suppliers have committed to the highest standard of responsibility and have given their assurance that such farms in Louisiana contribute to the stable growth of wild alligators, thus protecting this endangered species. Panerai does not use leather coming from endangered species taken from the wild.
Officine Panerai presents the P.4000 calibre, the first automatic movement with an off-centre micro-rotor completely developed and made in the Panerai Manufacture at Neuchâtel. This design means that the rotor is mounted off-centre and is therefore smaller in diameter than the calibre itself: a sophisticated technical solution enabling the thickness of the movement to be substantially reduced. The small oscillating weight is inserted within the movement rather than superimposed upon it and the result is a calibre which preserves all the Panerai characteristics of accuracy, reliability and solidity but with a thickness of only 3.95 mm. With a diameter of 13¾ lignes (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. 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.
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