Panerai Luminor Submersible 1950 3 Days Power Reserve Automatic Bronzo Instructions page 12

THE LUMINOR SUBMERSIBLE 1950
3 DAYS POWER RESERVE AUTOMATIC
BRONZO WATCH
In the mind of every sailor, bronze immediately evokes images associated with
the sea. Vintage yachts and ships are rich in objects made of this material,
which reacts to the passage of time and effects of the atmospheric by
acquiring a patina which makes every single item unique. Two years after the
extraordinary international recognition given to its first watch with a bronze
case, Officine Panerai presents the Luminor Submersible 1950 3 Days Power
Reserve Automatic Bronzo, a new Special Edition of 1000 units produced in
the same material with its eternal fascination and its decisively nautical
associations.
T
HE CASE
The Panerai Luminor Submersible 1950 3 Days Power Reserve Automatic
Bronzo watch has a 47 mm case made of brushed bronze.
The bronze chosen by Officine Panerai for the case of the Luminor
Submersible is CuSn8, an alloy of copper and pure tin.
It is highly resistant to wear, it supports heavy loads and shocks and it is very
resistant to sea water and atmospheric agents. With the passage of time
bronze forms a patina which is the result of the natural ageing of the material
due to the action of external agents (air, humidity, heat and wear) and it does
not alter the properties of the material, but it is rather a sign of its ageing,
making each example unique and personalised.
In the construction of the case, Panerai has made use of techniques involving
many complex working operations, which ensure an exceptional aesthetic
finish and the best resistance in terms of absorbing shocks.
To optimise the reliability of the watch over a long period, the winding crown
incorporates a special element with a threaded ring whose function is to
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control the degree of force with which the winding crown is locked by the
device protecting the winding crown, which protects it from shocks and
accidental breakage and helps to ensure the water-resistance of the case.
The moving lever is mounted in the bridge fixed to the case which is engraved
with the letters REG. T.M. (Registered trademark). The lever is terminated by a
small rotating cushion-like component, which avoids wear at the end of the
lever in contact with the crown, allowing the most effective setting of the axial
pressure between the two parts.
The crystal is of sapphire, made of corundum, a very hard material (second
only to diamond), free of impurities, transparent, resistant to abrasion, and
with anti-reflective treatment.
The titanium screw-in back has a sapphire crystal window, enabling the
mechanism to be admired. On the back of the case are engraved the case
number, the sequential number of the watch with the number produced, the
material and the maximum depth of use.
The water-resistance of your watch, indicated on the back by the symbol
, is guaranteed to a pressure of 30 bar, which corresponds to the
hydrostatic pressure exerted by a column of water on 1 square centimetre at
a depth of 300 metres under normal conditions. In these circumstances your
watch is therefore water-resistant to a depth of about 300 metres.
T
HE UNIDIRECTIONAL ROTATING BEZEL
The bezel is of the unidirectional type, rotating only anti-clockwise. It has
a scale divided into 60ths, graduated in minutes for the first 15 minutes and
then every 5 minutes. The movement of the bezel when it is being set is very
distinctive. It is of radial design, using a metal ring-shaped element which
significantly improves the precision of the click, as well as ensuring that the
bezel has the greatest possible resistance to wear and to high temperatures.
Patent filed for this system of operation.
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