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Panerai Radomir 1940 3 Days Automatic Acciaio


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Basic Info

Brand Panerai
Ref. No. PAM00620
Movement Automatic
Case material Steel
Bracelet material Crocodile skin
Year 2016
Condition 0 (unworn)
  With box
  With papers
Gender Men's watch/Unisex
Location Germany, Frankfurt Am Main
Price 7,300 € (= $7,891) [Negotiable]
Availability Available now


Movement Automatic
Movement/Caliber P.4000
Base Caliber Panerai
Power reserve 72 h
Number of jewels 31
Frequency 28800 A/h


Case material Steel
Case diameter 42 mm
Waterproof 10 ATM
Material bezel Steel
Glass Sapphire Glass
Dial Black
Dial numerals Arabic numerals


Bracelet material Crocodile skin
Bracelet color Black
Lug width 22 mm Size guide
Clasp Buckle
Clasp material Steel
Buckle width 18 mm


Display Back, Small Seconds, Luminescent Numerals, Luminescent Hands, Chronometer, Only Original Parts


Officine Panerai Radomir 1940 3 Days Automatic Acciai 42mm.

The Radiomir 1940 3 Days Automatic (PAM00620) offers an exceptional combination of the Italian design of the 1940s with the technical expertise of high quality contemporary watchmaking: two aspects which complement each other to offer enthusiasts a watch with a strong personality. The dial is black and has all the classic characteristics of the Panerai dial: the sandwich structure, large bar hour markers and figures at the cardinal points, and the small seconds counter at 9 o’clock. Each element of the watch case is made of AISI 316L stainless steel and has a polished finish, including the wide bezel, the lugs integral with the case block and the cylindrical winding crown with the OP logo. On the back is a sapphire glass porthole which reveals the ingenious simplicity and beauty of the P.4000 calibre. The Radiomir 1940 3 Days Automatic is supplied with a black alligator strap with contrasting ecru stitching. The case is consistently water-resistant to 10 bar (a depth of about 100 metres).


AISI 316L 1.4435 stainless steel is Officine Panerai’s material par excellence since it is highly resistant to corrosion and is hypoallergenic, making it ideal for contact with the skin.

The Panerai watches created for the Italian Navy were made of austenitic stainless steel, a reliable material that was also resistant to the extreme environmental conditions in which the commandos operated. AISI 316L, a specification of the American Iron and Steel Institute, is an austenitic stainless steel alloy with a chromium content of 16–18%, 11–14% nickel and 2–3% molybdenum.

Officine Panerai uses the low-carbon variant of this alloy: the lower carbon content of the steel improves its welding qualities where the metal’s thickness is 6mm or less. The excellent technical qualities of this material make it an essential element of every new Officine Panerai collection.


P.4000 calibre

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.

Retail Price: 9700Eur

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Size guide for wristbands

1 | Lug width

The lug width is the width of the strap at the end that is attached to the watch. This is the interior distance between the two lugs (horn-like protrusions) on the watch casing. The strap will fit your watch only if the lug width of the watch is the same width as the strap.

2 | Buckle width

The buckle width is the width of the strap at the buckle end. If you want to keep your watch’s original buckle and replace only the strap, the width of the original buckle must be identical to the strap width. For watches with folding clasps, please choose a strap specially made for your particular clasp.

3 | Strap length

The strap length is the combined length of the short strap side 3A (without buckle) and the long strap side 3B. For metal straps, the length of the strap including the clasp is measured in the closed position.

4 | Strap thickness

Strap thickness is the height of the strap. Many leather straps thin out towards the buckle end, or “taper”. If you want to keep your watch’s original buckle and replace only the strap, the strap thickness must match the height of the original buckle. For watches with folding clasps, please choose a strap specially made for your particular clasp.