Luminor Submersible 1950 3 Days Automatic Bronzo - 47mm



Technical Details

Unique edition of 1000 units

Movement Automatic mechanical, Panerai P.9000 calibre, executed entirely by Panerai, 13¾ lignes, 7.9 mm thick, 28 jewels, Glucydur® balance, 28,800 alternations/hour. Incabloc® anti-shock device. Power reserve 3 days, two barrels. 197 components.

Functions Hours, Minutes, Small Seconds, Date, Calculation of immersion time

Case Diameter 47 mm, Brushed Bronze

Bezel Brushed Bronze with polished edges. Anti - clockwise rotating bezel with graduated scale for measuring the duration of immersions and ratchet click at minute intervals.

Back Screw, Titanium, see - through sapphire crystal

Device protecting the crown (Protected as a trademark) Brushed Bronze

Dial Green with applied luminous dots and hour markers. Date at 3 o’clock, seconds at 9 o’clock.

Water Resistance 30 bar (~300 metres)

* 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 LUMINOR SUBMERSIBLE 1950 3 DAYS AUTOMATIC BRONZO PROFESSIONAL UNDERWATER WATCH BY OFFICINE PANERAI evokes the world of the sea, the ever-present element in the DNA of the Florentine brand. A development of the model created more than half a century ago by Officine Panerai for Egyptian Navy commandos, the Luminor Submersible 1950 3 Days Automatic Bronzo - 47 mm is made of bronze, a material that has always been linked to the sea. The bronze chosen by Officine Panerai for the case of the new Luminor Submersible 1950 3 Days Automatic Bronzo - 47 mm is CuSn8, an alloy highly resistant to the corrosive action of seawater and the elements. In addition to its great structural strength, this material maintains its original colouring despite taking on an aged look over time due to its patina. In fact, it is the patina which is the fundamental characteristic of this material - the result of the reaction of bronze to external agents (air, humidity, heat and friction). Rather than altering the properties of the material, it is a testament to its age, making each watch unique and personalised. The 47mm diameter brushed bronze case is water-resistant to 30 BAR (300 metres) and has a unidirectional, anti-clockwise bezel with a sexagesimal graduated scale divided into individual minutes for the first 15 minutes, then every 5 minutes. The characteristic crown-protecting bridge with a lever ensuring the crown itself is perfectly airtight, is also made of bronze. The sapphire crystal case-back, on the other hand, is fixed to the case-middle by means of a titanium ring, a metal chosen for its hypoallergenic properties. The dial, in a never-before-used dark green, recalls the graphic layout typical of the Luminor Submersible, with applied hour markers instead of the numerals 12 and 6. Protected by a sapphire crystal, the dial features ultra-luminescent skeletonised hands, the small seconds at 9 o'clock and the date symmetrically at 3 o’clock. The Luminor Submersible 1950 3 Days Automatic Bronzo has an automatic P.9000 calibre, designed and produced entirely by Panerai. The P.9000 calibre has a three-quarter plate structure, clearly visible through the transparent case-back, a 13¾ lignes diameter and two barrels, which provide a power reserve of 3 days.



Bronze has a long history, dating back as far as the second millennium BC. At that time, it was used to produce items such as tools, weapons, musical instruments and armour, being stronger and tougher than its predecessors copper and stone. Bronze consists of copper with a variable percentage of tin. It may also contain varying amounts of aluminium, lead, beryllium, manganese and tungsten, sometimes with silicon and phosphorus as well.

Bronze is very versatile and it is highly valued for its many different uses: in the arts, in sculptures (80% copper and 20% tin) and for making bells (21.5 to 24% tin), the creation of hydraulic systems where the bronze alloy contains 10% of tin and 3% of zinc, and the more recent use of this material for ship propellers, where its high resistance to corrosion by seawater is invaluable. And in the past, since its resistance to corrosive seawater is much greater than that of iron, this alloy was used for the equipment of many yachts of yesteryear: portholes, handrails, cleats, winches and compass binnacles were made of bronze, and it was also used for divers’ helmets.

Its ancient history and its close links with the world of the sea make bronze the material that embodies the core values of Officine Panerai, which uses an alloy of copper and tin in the pure state. In addition to its high structural strength, this material retains its original warm tones while with the passage of time it acquires an aged appearance through the patina that covers it.

This patina is the result of the reaction of the bronze with external agents such as air, moisture, heat and friction. It does not alter the properties of the material, but it is evidence of ageing, giving each piece its own unique personality. The patina of the bronze is its skin: it is a protective layer, and as the surface of the metal becomes covered, it slows down any further oxidation of the metal.


P.9000 calibre

The P.9000 calibre, created entirely by Officine Panerai and used in a series of Luminor 1950 and Radiomir models, is fitted with various functions: it is an automatic calibre with a 3-day power reserve and a unique technical design which makes these movements immediately recognizable. The calibre has a diameter of 13¾ lignes and numerous features: two barrels which guarantee 72 hours of power reserve; a single piece rotor which winds by moving in both directions thanks to an automatic ratchet device; a balance wheel with adjusting screws, oscillating at a frequency of 4 Hz. To house this movement, a specially made version of the Luminor 1950 case has been designed, keeping the proportions of the original but featuring a slightly less convex sapphire crystal which only barely protrudes from the bezel.

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