Radiomir 1940 3 Days Marina Militare Acciaio - 47mm



Technical Details

Unique edition of 1000 units

Movement Hand-wound mechanical, P.3000 calibre, executed entirely by Panerai, 16½ lignes, 5.3 mm thick, 21 jewels, Glucydur® balance, 21,600 alternations/hour. Incabloc® anti-shock device. Power reserve 3 days, two barrels. 160 components.

Functions Hours, Minutes

Case Diameter 47mm, AISI 316L Polished steel

Bezel Polished Steel

Back See - through sapphire crystal

Dial Black with luminous Arabic numerals and hour markers.

Water Resistance 10 bar (~100 metres)

Strap Calf Ponte Vecchio, Dark brown, Beige, 26/22 MM Standard

* The trademark Velcro® and Coramid® are not property of Officine Panerai.

* The trademark Velcro® and Coramid® are not property of Officine Panerai.

In Depth

The new Radiomir 1940 Marina Militare 3 Days Acciaio presents the pure design of this case, combined with a series of historic details demonstrating the fidelity of the new model to those created for the Italian Navy in the 1940s. The case is 47 mm in diameter, the standard size for watches made for the commandos of the Navy, because they had to be worn over a wet suit. It is made of AISI 316L stainless steel, an alloy particularly resistant to corrosion that is perfect for a watch water-resistant to ten bar (~100 metres). Engraved between the lugs, milled from the steel block of the case, are the reference of the watch (PAM00587) and the number of the case, while the inscription “Marina Militare” appears on the dial. Apart from the engraving, the design of the black dial is of absolute simplicity with only the large linear markers and the Arabic figures at the cardinal points. All the elements on the dial are perfectly visible in very poor light, thanks to the large size and the typical Panerai structure of the dial, consisting of superimposed discs with Super-LumiNova® between the, visible through the holes corresponding to the hour markers. To protect the dial, the crystal is not made of sapphire crystal but slightly cambered Plexiglas®, as in the period examples in which the crystal was made of polymethyl acrylate. The hands too, slender and pointed, have been designed to match those of the period Panerai watches. Visible through the sapphire crystal back of the case is the in-house P.3000 calibre, a hand-wound mechanical movement with a power reserve of three days achieved with two spring barrels. Clearly visible through the crystal back are the oscillation of the balance wheel and the wide bridges, satin finished with blue engraving, which cover much of the wheelwork. The mechanism for adjusting the time with the winding crown is extremely practical because it enables the hour hand to be adjusted independently of the other hand, in jumps of one hour at a time so as not to interfere with the running of the minute hand. The Radiomir 1940 Marina Militare 3 Days Acciaio is a Special Edition of one thousand units and it is supplied with a brown leather strap with ecru stitching and hot-stamped with the OP logo. In the fine pear wood box in which it is supplied there is a spare Plexiglas® crystal.


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.  


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.


P.3000 calibre

The P.3000 calibre, created entirely at the Panerai Manufacture, presents the main characteristics of the Panerai movements in terms of structure and robustness, accuracy and power reserve. The diameter of the calibre is 16½ lignes, a substantial size which traces its origins from that of the movements which were fitted to the historic Panerai models. The calibre is immediately recognisable by its construction, which is similar to that of a three-quarter plate movement: a large bridge, next to another smaller one, covers the majority of the mechanical parts, and is fixed to the bottom plate by a series of screws of substantial thickness, thus forming a particularly rigid structure. The movement has 21 jewels and it uses two spring barrels connected in series. Such an arrangement enables long, thin springs to be used, which ensure the delivery of a more even force over a longer period of time, with a power reserve of 3 days. The balance wheel is notably large (13.2 mm) and it is the variable inertia type, with four adjusting screws arranged externally round the ring, so that the rate can be regulated without the need to remove the whole assembly. Held by a bridge with twin supports – a fixing much safer and more stable compared to the cantilevered single bridge – the balance wheel oscillates at a frequency of 3 Hz, equivalent to 21,600 alternations per hour. It is fitted with an Incabloc® anti-shock device and is free-sprung, so there is no regulating lever. With brush-finished bridges and chamfered edges – that is, with the edges smoothed and polished – the P.3000 calibre is also fitted with a device for the rapid adjustment of the time: a star wheel with 12 points and a small spring clutch enable the hour hand to be moved one hour at a time, without interfering with the movement of the minute hand or the operation of the watch.

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