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Inspired by the original Longines Ultra-Chron Diver Of 1968, the new model reflects the iconic design cc:xfes of its ancestor and is highly resistant to shocks, scratches and water pressure.Click, to see the large size. ▶ BIG FOTO
In 1968, Longines launched the Ultra-Chron Diver. the first dive watch to be equipped with a high- frequency movement. At the time. Longines had already established itself as a pioneer in high-frequency technology.
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In fact, the winged hourglass brand created its first high-frequency timekeeping device to measure precisely
1/10"' of a second as early as in
1914. In
1959, Longines developed the first high-beat movement for a wristwatch. an observatory chronometer that set new records in terms of accuracy.
Click, to see the large size. ▶ BIG FOTOThe new
Longines is inspired by the aesthetic codes as well as the professional dive features of the
1968 model. It features a unidirectional rotating as well as a screwed- in caseback and crown. It also offers great legibility and is water resistant to 30 bar (300 meters).
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Longines Ultra-Chron's instantly recognizable
43mm cushion-shaped steel case is fitted with a diving that boasts a sapphire insert with luminescent accents, The eye-catching black grained dial features a white minute track with alternating Super-LumiNova® coated batons and rhodium plated appliques.
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The original
Ultra-Chron logo is proudly applied on the dial and embossed on the caseback. The new
Longines has a distinctive red minute hand which. like the hour hand. is coated with Super-LumiNova® for optimal legibility.
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At the heart of the new
Longines Ultra-Chron is the calibre
L836.6, a high-frequency "in house' movement. A watch is referred to as "high-frequency" when it is fitted with a movement whose balance-spring oscillates at
36.000 beats per hour (
10 beats every second).
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These movements, which Congines pioneered in
1914 (to time
1/10" of a second) and
1916 (to time
1/1000' of asecond), improved precise timekeeping. From
1959 onwards.
Longines made use of the high-beat-movements to increase the accuracy of its watches. Thanks to a reduction of the disruptive effects of shocks or ot changes in the position of the movement. the high-beat movement proves to be more stable.
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The accuracy of the
Longines Ultra-Chron is confirmed by its certification as an "ultra chronometer" by
TIMELAB, an independent testing laboratory in Geneva. This designation "chronometer"goes beyond the usual "ultra-chronometer" certification.
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The qualification prcn:ess tests the watch head and subjects the finished product to a
15-day testing period during which the watch is submitted to a series of tests at three temperatures.
8 C - 23 C and
38 C. confirming that it meets the strict precision criteria (
ISO 3159:2009 standard).
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The Longines Ultra-Chron is available with a choice of a leather strap or a steel bracelet and it is delivered in a special presentation box containing a black NATO strap crafted from recycled material.
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The new
Longines Ultra-Chron will evoke an emotional response from any watch aficionado who is passionate about the iconic timepieces from one of watchmaking's most innovative eras. It will also win over new enthusiasts who will be thrilled to wear a bit of horological history on their wrists.
The History of high-frequency watches made by Longines
More than 100 of experience in manufacturing high-frequency timepieces has made Longines the leading expert on professional timekeeping and in sports watches The fast-beating movements are Of measuring 1/10th or 1/100!h Of a second. In addition, they have proven to extremely accurate. Over time. Longines has built a wide variety of high-beat stopwatches, chronographs and chronometers.
1914: Stopwatch With 5 HZ high-frequency movement and split-second hand [CAL 19_73Nl
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As early as 1914. Longines used high-frequency movements in its handheld stopwatches for the timekeeping of sporting events to measure 1110th of a second, Driven by the calibre 19,73N with a balance wheel oscillating at 36.000 beats hour. this chronograph proved very successful in sports. military and medicine. The pictured was equipped with a split-second hand, a modification that Longines introduced in 1922. TOimprove the reading Of 1/10th Of asecond. the chronograph hand rotates once around the dial in 30 seconds. The 15-minute counter is placed on the auxiliary dial near 120'clock.1916: Stopwatch with 50 Hz high-frequency movement to measure 11100th Of a second [CAL. 19.73N
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In
1916.
Longines was capable Of measuring
1/100th of a second, Based on the modified calibre
19.73N. the engineers in Saint-Imier enhanced the speed of the balance to a rate of
360.000 beats per hour - and thus enabled the exact reading of of a second. To achieve this. the chronograph hand flew over the dial in just three seconds to its starting position. The scale on the *riphery ot the dial was divided into very small steps of
11100th of a second. An instantaneous minute counter was placed at 12 and could measure up to three minutes.
1938: High-frequency skiing timer (5 HI) with hand [CAL 24 LINESI
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As sporting events more important.
Longines was appointed Official Timekeeper on numerous occasions. In
1938. it develogpd a larger and more accurate movement: the 24 lines. This chronograph was constructed on the basis of a navigational chronometer (
cal. 24.99). The timer for ski races pictured here (from
1939) ticked at
36.000 hour to measure
1110th of asecond. The chronograph hand made one rotation in 30 seconds. which read the fractions Of a second. Equipped with a second split-second hand and a 30-rninute recorder. this professional stopwatch with three pushers was encased in Staybrite steeL The movement was adjusted to thræ pcsitions and gained special notice at the Observatory of Neuchåtel for its high accuracy.
Longines built a variant of this calibre to measure
1/100th of a second.
1957: Professional high-beat and split-second chronograph to time 1110th of a second [CAL 260
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To improve the 24-line calibre Of
193B,
Longines launched a chronograph Of the same size in
1957 with a 30-minute counter and a system of stopping the balance. This professional instrument still had a minute and hour hand. but was also able to measure
1110th of a second thanks to its high -frequency movement (
36.000 vibrations per hour). It was equipped with a flyback function and a hand. The from
1966 has a specicial chronograph hand With a so-called nonius-scale: at its extrernity there is a rack with nine "teeth" that indicate the end Ofthe hand. When the hand is stopped. one Ofthe -teeth' stops exactly in line with one of the "seconds" marks around the dial. The number at the base of this indicates the of tenths of a second.
1959: First high-frequency wristwatch Observatory Chronometer [CAL 360
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In the
1950s.
Longines was convinced that there was a need to increase the scientific efforts to maintain its competitive edge. Following the technical drawings of August
1958.
Longines was ready to present the first high-frequency movement for a wristwatch in
1959; the calibre
360. oscillating at
36.000 beats hour. handmade and fine-tuned for Observatory Chronometer Competitions. This technical milestone was built in a series Of
200 pieces from
1959 to
1963. The rectangular movement improved the accuracy considerably, and it took first and second place in the accuracy competition at the Observatory of Neuchatel in
1961 and the following year. claimed first. second and third places. The daily deviation was around or
1/10th of a second.
1966: Ultra-Chron, the accurate high-beat wristwatch [CAL 431
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In the
1960s.
Longines' engineers worked on a mechanical mcwement that matched the accuracy of the new electronic watches. Thanks to their experience in timekeeping and in Observatory Chronometers. they knew that high-frequency watches were more consistent between the vertical and horizontal positions and suffered less drop in amplitude over a day, making them more accurate. The obstacles were lower wwer reserve and lubrication problems.
Longines found the solution in the calibre
431 (with dry lubrication) and guaranteed an amazing accuracy of one minute a month, or two seconds a day. Being far more accurate than a chronometer by the
COSC (Controle Officiel Suisse des Chronométres). the model was named
Ultra-Chron.
Longines registered the name in October
1966. The first
Ultra-Chrons were sold in the
United States in December
1966.
1968: Ultra-Chron Diver, the first high-beat watch under water [CAL 431
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In
1967.
Longines drew asporty version of the
Ultra-Chrom adiver's watch with a bright-red minute hand. water-resistant to
200 metres. In early
1968. it was the first high-frequency diving watch. and probably the most accurate. driven by the unique calibre
431. As with all the
Ultra-Chron models,
Longines guarante«t an accuracy of one minute a month, which converts to two seconds a day. The tonneau- shaped watch was fitted with a calendar mechanism and a turning bezel, which enabled divers to determine their immersion times. To ensure legibility. even in murky water, the index marks on the dial hand. the triangle on the bezel and even the tip of the seconds hand (in the first series) were filled with tritium.
The timing of sports events with high-frequency instruments made by Longines
Thanks to its highly accurate and reliable timepieces Longines was requested to time the most important and prestigious sports events all over the world. Up to this day this honourable task has motivated Longines to improve the precision and accuracy of its watches and to develop ever better timing equipment.
Equestrian sports
As early as 1878. Longines had developed its first chronograph movement. which was scx)n fittæt in a case engraved with a jockey and his horse. These stopwatches were seen on the American racetracks in the 1880s. where they proved very among jockeys as well as the attending the races. In 1912. a new step was taken when Longines entered into its first official partnership with a show jumping event in Lisbon, Portugal. Throughout the years. Longines has timed thousands of To measure the closely-spaced competitors. the brand from Saint-Imier produced stopwatches with split-second hands as well as high-frequency movements accurate to 1/10th or 1/100th of a second. As a result of its legacy and expertise. Longines involvement in equestrian tcxiay includes show jumping, dressage. and flat racing disciplines.
Alpine skiing
Skiing down snowy mountains ranks among the most sports in Longines home country of Switzerland. In 1924. the brand timed the International Week of Winter Sports" in Chamonix (France). Some years later. the stopwatches from Saint-Imier were timing the World Ski Championships at the same place. In 1939. Longines presented a skiing timer with a high&at movement and split-second hand. measuring 1110th of a second.
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For the
Military Ski Championships in
Crans-Montana (
Switzerland) in
1945.
Longines introduced a photocell light barrier on the finish line. In
1948.
Longines was selected to time the legendary Kandahar downhill race in
Sankt Anton (Austria). The organisers of the
Ski World Championships of
1950 in (
USA) chose
Longines to be the Official Timekeeper. Today.
Longines is the Official Partner and official of the
FIS Alpine Ski World Cup tour and the
FIS AlpineWorId Ski Championships and continues to time the most famous ski races in the
FIS Alpine Ski World Cup. including. among many Others. the downhill races in
Kitzbühel (Austria) or
Lauberhorn-Wengen (Switzerland).
International Rallye-Sport
In January 1949. cars from all over Europe participated in the first edition of the Rallye Monte-Carlo after World War II. Timekeeping was entrusted to Longines. a status it held for more than years. In 1955. the brand from Saint-Imier launched a special punch printing device. Printogines. Equipped With a clock with an d-day power reserve. it allowed contestants to punch their own control card at each checkpoint over the more than km distance.
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The reliable and robust device determined the Official winning times on the basis of the drivers' recorded passages through all checkpoints, It was so useful that it was appointed to time all the famous rallies of its - including the Coupe des the
RAC Rally of
Great Britain. the
TAP Rally in
Portugal. and the Thousand Lakes in
Finland as well as the Rallye in Greece and the
Rallye de Cute d'Ivoire in
Africa.
Cycling races
In 1951. Longines was asked to time the world's leading cycling event. the Tour de France. The race across France was an excellent opportunity to test a new system that combined a camera at the finish line with a device recording each contestant's time on film. This timing system solvect the photo-finish problem when closely grouped reached the line at nearly the same time.
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The former president of the
French Cycling Federation.
Jean Pitallier. personally timed every edition of the
Tour de France from
1973 to
1980 with a pair of
Longines high-frequency split-second stopwatches (ret,
7411).
Longines was Official Timekeeper of the
Tour de France until
1982 but its commitment to cycling went far beyond that; from
1954 until
1988.
Longines timed the world track and road championships
28 times - as well as such renowned events as the Giro d'ltalia or the
Vuelta in
Spain.
Formula 1
In 1949 Longines introduced a timing system for motor races capable of recording 1110th of a second via a series of photos. It was so convincing that the International Automobile Federation certifi«i it in 1950. In the same year. the inaugural season of Formula I.
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Longines timed the famous
Grand Prix de Monaco and the Indianapolis
500 in the
USA as well as Formula I races in Barcelona (
Spain). Buenos Aires (
Argentina). Spa (
Belgium). Zandvoort (
The Netherlands), and Bern (
Switzerland) along with numerous other racing events in the following years. ay
1954,
Longines had developect Chronotypogines. which used a sensor to automatically start and stop time. This system was soon adopted by the International Automobile Federation. In
1980,
Longines launched (
With Olivetti) a new method to time each car independently by using radio waves. This led to
Longines" role as Official Timekeeper for all
Formula 1 races from
1982 to
1992,
Based in Saint-lmier in Switzerland since 1832. the watchmaking cornpony' Longines wields expertise steeped in tradition. elegance and performance. With generations of experience as official timekeeper of world championships and as partner of internationat sports federations Longines has bunt strong and long-lasting relationships in the world of spcrt over the years. Known for the elegance of its timepieces. Longines is a member of Swatch Group Ltd., the world's leading watch manufacturer. The Longines brand with its winged hourglass emblem. is established in Over 150 countries.
=============== About our movements
With centuries of watchmaking Longines has played a pioneering role in a number of technological advances and continues to display an unwavering commitment to innovation. Its constant pursuit of excellence has. in turn. led it to equip au of its automatic timepieces with state-of-the-art movements which, notably, include a silicon balance-spring. This material is not only light and corrosion- resistant but also remains unaffected by normal temperature variations and magnetic fields. Its unique properties improve the precision and longe vity of the watch and allow Longines to provide these mcdels with a 5-year warranty.
-----------------------------
Technical specifications
Collection: DIVING
Model name: Ultra-Chron Box Edition
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Reference numbers
Ultra-Chron Box Edition Ref. L2.836.4.52.8 - Leather strap
Ultra-Chron Box Edition Ref. L2.836.4.52.9 - Steel bracelet
Movement
Mechanical self-winding movement,
Caliber L836.6 based on ETA C07.811/2824-2Diameter: 25.6mm
Thickness: 5.05mm
Power Reserve: 52 hours
Winding: AutomaticFrequency: 5 Hz / 36,000vibrations per hour, with a monocrystalline silicon balance-spring
Jewels: 25Chronometer Certified: Yes, new "Ultra-Chronometer" certification through TimeLab in Geneva
Functions
Hours, minutes, seconds
Case
Round, cushion-shaped stainless steel
Ø
44 mm,
13.6mm thick with internal turning diving bezel
Unidirectional rotating bezel Screw-down case back and two screw-in crowns
Water-resistance To
30 bar (
300 meters)
DialBlack grained dial features a white minute track
Applied indexes indexes, with squared blocks of Super-LumiNova®
Hands Silvered polished hands with Swiss Super-LumiNova®
Crystal Scratch-resistant sapphire crystal, with several layers of anti-reflective coating on both sides
StrapStainless steel braslet. With triple safety folding clasp and push-piece opening mechanism
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