News SIHH 2013

In 2013, the Jaeger-LeCoultre Deep Sea Chronograph Cermet timepiece is writing a new chapter in the field of underwater exploration: its illustrious ancestry is matched by a peerlessly reliable movement endowed with signature Jaeger-LeCoultre functions, while its case embodies an exceptional technological breakthrough.

Deep Sea Chronograph Cermet

The legend gets a makeover

The Watch Quote™ - March 3rd, 2013



This outstanding model owes its appeal first and foremost to its noble origins, since it stems directly from the famous Memovox Deep Sea introduced in 1959, the first automatic diver’s watch equipped with an alarm and which had called upon the full inventive force of the Jaeger- LeCoultre watchmakers.

Jaeger-LeCoultre Memovox Deep Sea - 1959

Today, Jaeger-LeCoultre takes another step forward by unveiling a timepiece loyal to its classical inspiration while firmly in the technological vanguard with its reinforced Cermet case. This unique association might well put an end to the longstanding quarrel between Ancients and Moderns. Especially since the chronograph boasts an exclusive additional security feature. This ingenious device is inspired by the Chronoflight onboard chronograph, invented in 1930 to equip aircraft and greatly appreciated by pilots until the mid-1950s.


An instrument intended for professionals

Jaeger-LeCoultre Deep Sea
Vintage Chronograph Cermet
This timepiece is professional in more than one respect, since it meets all the criteria laid down for diver’s watches in the ISO 6425 standard. It has a unidirectional rotating bezel, while the luminescent hands and hour-markers enable easy and error-free indication readings, even in poor visibility conditions. The Jaeger-LeCoultre Deep Sea Chronograph Cermet watch fully complies with the requirements established by the ISO standard regarding shock resistance and antimagnetic protection. Finally, as a reminder that this timepiece water-resistant to 10 bar (100 metres) is designed to guarantee absolute reliability in an aquatic environment, its solid caseback is adorned, like the historical model, with an engraving of a frogman surrounded by bubbles. The diver’s watch is teamed with a calfskin strap complete with a varnished edge ensuring it remains fully impermeable, whatever the circumstances.


An icon gets a facelift with a brand-new case

Jaeger-LeCoultre Deep Sea Chronograph Cermet
The case also calls for specific attention: despite its generous 44 mm diameter, it conveys a surprising sense of lightness on the wrist. The reason lies in the use of reinforced Cermet, a revolutionary material composed of an aluminium matrix – hence its low weight – reinforced by ceramic particles topped by a 40 micron-thick protective ceramic coating.

Reinforced Cermet – of which the composite name derived from ceramics and metal reflects the technology – boasts an impressive array of advantages. It is more resistant to shocks and pressure than pure ceramics, an asset that divers are sure to appreciate to the full. Due to its insensitivity to extreme temperatures, this material is also used in aeronautics and on Formula 1 racing-car engines. Moreover, its ceramic protective layer is more resistant to scratching than steel. Finally, the lightness of reinforced Cermet – which weighs 66% less than titanium – makes it the ideal material for a 44 mm-diameter case and particularly suited to professional diving purposes.


A distinctive Jaeger-LeCoultre feature

The Jaeger-LeCoultre Deep Sea Chronograph Cermet is driven by mechanical automatic Jaeger-LeCoultre Calibre 758 housing a balance oscillating at a frequency of 28,800 vibrations per hour, and incorporates the latest results of the research conducted by the Manufacture in the realm of anti-shock protection. Crafted, assembled and decorated by hand, this movement ensures a 65-hour power reserve.

On the Jaeger-LeCoultre Deep Sea Chronograph Cermet diver’s watch, a chronograph operating indicator composed of two discs (one red and one white) contributes to enhancing diver’s safety by enabling them to check at a glance whether the chronograph is running, stopped or reset.

Jaeger-LeCoultre Chronoflight - 1953

This specific feature is inspired by an historical Jaeger-LeCoultre invention: the Chronoflight onboard chronograph. This device invented by the Jaeger company in the 1930s soon earned its place aboard aircraft and later on sports car dashboards. At the time, it took the form of a dial with numerous counters and totalizers which notably made it possible to add up flight times while deducting stop-over durations. For over three decades, its robustness and its reliability – both of which were indispensable in withstanding the harsh conditions inherent in aeronautical endeavours during the first half of the 20th century – made it one of the most precious cockpit instruments, while famous racing drivers soon became convinced of its sterling qualities and demanded to have it fitted on their speed machines.

Jaeger-LeCoultre Calibre 328 Chronoflight - 1953

In particular, the Chronoflight comprised an ingenious device related to the chronograph function, which the Manufacture has now resolved to make available to 21st century divers.

Jaeger-LeCoultre devotees with a penchant for strictly historically-inspired models will find the model of their dreams at Jaeger-LeCoultre boutiques in the Jaeger-LeCoultre Deep Sea Vintage Chronograph Cermet, on which the hands and hour-markers are enhanced by a luminescent orange coating exactly reflecting the shade used on the first Jaeger-LeCoultre diver’s watches.

In celebrating its 180th anniversary in 2013, Jaeger-LeCoultre has chosen to hark back to one of the finest chapters in its history by turning the spotlight on a creation radiating an aesthetic and technical perfection that pays tribute to the multiple skills cultivated within the Grande Maison.

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Historical reminder

In the mid 20th century, deep-sea diving was both a field of scientific investigation and a fast- booming sport. Diving clubs were opening up all over the place and their members were beginning to travel the world to plumb abyssal ocean depths. Nonetheless, as far as divers’ equipment was concerned, there was still major deficiencies when it came to ensuring the safety of the daring pioneers who set up to explore this uncharted territory. In this respect, time played a vital role because, then as now, the progressive return to the surface was punctuated by a series of decompression stops. It was thus important to keep precise track of oxygen reserves and of the time required to reach the surface of the water, in order to schedule the right moment to begin ascending towards the open air. Over 50 years ago, Jaeger-LeCoultre engineers realised that an alarm function as an indispensable feature on diver’s watches. They thus resolved to adapt the striking mechanism after which the Memovox line had been named to an aquatic environment. Coming at a time when there was no standard that defined the criteria to be met by diver’s watches, this improvement represented a decisive breakthrough. It met with immediate success and the first editions sold out rapidly. The Memovox Deep Sea went down in history as a legendary instrument well ahead of its times, subsequently retaining its historical prestige right the way through to its re-edition in 2011 as the Memovox Tribute to Deep Sea – a tribute which, in accordance with a firmly established Jaeger-LeCoultre tradition, was accompanied by innovative technical solutions.

Jaeger-LeCoultre Deep Sea Chronograph Cermet

Technical characteristics


Movement :Mechanical automatic movement, Jaeger-LeCoultre Calibre 758, crafted, assembled and decorated by hand
Frequency:28,800 vibrations per hour
Jewels :47
Thick :6.8 mm
Parts :340
Power reserve :65-hour (36 hours with chronograph in operation)
Functions :Hour
Minute
Small seconds
Chronograph:Hour and minute counters, central seconds hand
Chronograph mode indication: ON, OFF, reset
Dial :Matt black
Luminescent hands and hour-markers (orange-coloured for the Jaeger-LeCoultre Deep Sea Vintage Chronograph Cermet)
Hands :Openworked baton-type, luminescent (orange-coloured for the Jaeger-LeCoultre Deep Sea Vintage Chronograph Cermet)
Case :Reinforced cermet
Diameter :44 mm
Crystal :Sapphire
Water resistance:10 bar
Strap :Trieste calfskin leather
Pin buckle :Steel, black PVD
References
Q208A570 :Jaeger-LeCoultre Deep Sea Chronograph Cermet
Q208A57J :Jaeger-LeCoultre Deep Sea Vintage Chronograph Cermet

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