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{"Compl\u00e9ment":"Carbon - Sandblasted Anthracite Dial - Strap Fabric","Statut de vente":"En vente depuis","Date":"2025","Sexe":"Homme","Diam\u00e8tre":"43","Epaisseur":"14","Types":"Self-winding","Styles":"Vintage","Calibre_autre":"L836.6","Affichage_autre":"12 applied silver indexes with Super-LumiNova\u00ae blue luminescence treatment,\r\nOriginal Ultra-Chron logo applied,\r\nHANDS,\r\nGrey PVD (hours; minutes; seconds) with Super-LumiNova\u00ae (hours, minutes) blue luminescence treatment\r\n\r\n","Complication":"Hours, Minutes, Seconds","Mati\u00e8re du bo\u00eetier":"Carbon","Particularit\u00e9 du boitier_autre":"Carbon case middle with titanium structure,\r\nFixed titanium bezel with aluminium insert,\r\nScrew-down titanium crown,\r\nScrew-down titanium back,\r\nUltra-Chron logo stamped on the case back\r\n","Etanch\u00e9it\u00e9":"300 meters","Forme":"Cushion","Couleur du cadran":"Sand , Charcoal","Verre":"Sapphire","Verre_autre":"Anti-reflective coating on both faces","Mati\u00e8re du bracelet":"Fabric","Fermeture du bracelet":"Pin buckle","Couleur du bracelet":"Black","Plus de caract\u00e9ristiques":"<br\/>\r\nMovement<br\/>\r\n\u00b7\tHigh-frequency (5Hz) self-winding mechanical movement<br\/>\r\n\u00b7\tExclusive Longines calibre L836.6<br\/>\r\n\u00b7\tEntire watch chronometer-certified by TIMELAB<br\/>\r\n\u00b7\t11\u00bd lines, 25 jewels,\r\n36 000 vibrations per hour<br\/>\r\n\u00b7\tResistant to magnetism (ISO 764), with silicon balance spring<br\/>\r\n\u00b7\tPower reserve: up to 52 hours<br\/>\r\n<br\/>\r\nCase<br\/>\r\nCarbon case middle with titanium structure<br\/>\r\n<br\/>\r\nDial<br\/>\r\n\u00b7\tSandblasted anthracite<br\/>\r\n<br\/>\r\nStrap \/ Buckles<br\/>\r\n\u00b7\tBlack technical fabric, with titanium buckle"}

Ultra-Chron Carbon

Reference: L2.839.4.52.2

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Brand  :	Longines
Collection  :	Ultra-Chron
Model  :	Ultra-Chron Carbon
Reference  :	L2.839.4.52.2
Complement :	Carbon - Sandblasted Anthracite Dial - Strap Fabric
On sale :	2025

5 400 €Recorded list price in FranceI WANT ITADD TO CART

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• Brand  :	Longines
  Collection  :	Ultra-Chron
  Model  :	Ultra-Chron Carbon
  Reference  :	L2.839.4.52.2
  Complement :	Carbon - Sandblasted Anthracite Dial - Strap Fabric
  On sale :	2025
  List Price :	5 400 €
  Diameter :	43 mm
  Thickness :	14 mm
  Styles :	Vintage
  Types :	Self-winding
  Calibre :	L836.6
  Complication :	Hours Minutes Seconds
  Case material :	Carbon
  Case peculiarity :	Carbon case middle with titanium structure Fixed titanium bezel with aluminium insert Screw-down titanium crown Screw-down titanium back Ultra-Chron logo stamped on the case back
  Shape :	Cushion
  Water-resistance :	300 meters
  Dial color :	Sand Charcoal
  Display :	12 applied silver indexes with Super-LumiNova® blue luminescence treatment Original Ultra-Chron logo applied HANDS Grey PVD (hours; minutes; seconds) with Super-LumiNova® (hours minutes) blue luminescence treatment
  Glass :	Sapphire Anti-reflective coating on both faces
  Strap material :	Fabric
  Strap color :	Black
  Strap clasp :	Pin buckle
  + More characteristics :	Movement · High-frequency (5Hz) self-winding mechanical movement · Exclusive Longines calibre L836.6 · Entire watch chronometer-certified by TIMELAB · 11½ lines, 25 jewels, 36 000 vibrations per hour · Resistant to magnetism (ISO 764), with silicon balance spring · Power reserve: up to 52 hours Case Carbon case middle with titanium structure Dial · Sandblasted anthracite Strap / Buckles · Black technical fabric, with titanium buckle

DESCRIPTION

• ULTRA-CHRON CARBON

  A new interpretation of precision

  The ULTRA-CHRON collection adopts carbon: an innova- tive material that is both strong and light, and now being used for the first time in a Longines watch case. Powered by a Longines’ exclusive high-frequency movement, beating at 36 000 vibrations per hour, this model draws inspi- ration from an iconic 1968 watch with a distinctive cush- ion-shaped case. Combining innovation and precision, each ULTRA-CHRON CARBON offers a unique design and is ful- ly chronometer-certified by TIMELAB.

  A FIRST FOR LONGINES

  Launched in 1968, the Ultra-Chron Diver made history as the first diver’s watch to feature a high-frequency movement. At the time, Longines had already established itself as an expert in this technology, having patented it in 1910 for use in sports timekeeping. In 2022, the brand unveiled a new gener- ation Ultra-Chron, which paid tribute to the 1968 model while incorporating the latest technological innovations.

  Today, Longines continues to innovate by introducing a new Ultra-Chron mod- el with a carbon case, a first for the brand. This material, known for being both ultra-resistant and lightweight, is widely used in cutting-edge industries such as aeronautics, a field with which Longines has been closely associated for over a century. The 43 mm-diame- ter case is crafted from strips of unidi- rectional carbon fibre and epoxy resin, which are then placed into a mould and heated to a high temperature, com- pressed under high pressure, and final- ly cold-cut. It then takes on the iconic cushion shape of the Ultra-Chron case.

  This unique manufacturing process creates random patterns in the layout of the fibres, making each case visual- ly unique and giving it a strong identity. Thanks to carbon’s lightweight proper- ties, this new model weighs less than 80 grams, including both the watch and strap. It is water-resistant up to 30 bars (300 metres).

  The titanium bezel is fixed and features an aluminium insert engraved with a scale numbered in increments of 10. The case back and screw-down crown are also in titanium. Beneath a sapphire crystal with multi-layer anti-reflective treatment, the sand-blasted anthracite dial features a chapter ring marked by twelve applied silver indexes. These, along with the grey PVD hour and min- ute hands, are coated with a Super-Lu- miNova® blue luminescence treatment.

  HIGH FREQUENCY AND PRECISION

  Like the other models in the collection, the Ultra-Chron Carbon is powered by the exclusive Longines high-frequency calibre L.836.6. This movement oscil- lates at 5 Hertz, or 36 000 vibrations per hour. Compared with conventional mechanical movements, it offers great- er stability in response to shocks and changes in position caused by wear- ing the watch. Equipped with a silicon balance-spring and innovative components, this calibre is also up to ten times more resistant to magnetic fields than the ISO 764 standard.

  This watch is also fully certified as a chronometer by TIMELAB, an accred- ited independent watch testing labo- ratory in Geneva. In keeping with the ISO 3159 standard, the qualification process subjects the finished product to a 15-day testing period during which the entire watch is put through a series of functional tests in various positions, repeated at three different tempera- tures, 8°C, 23°C and 38°C, to confirm its accuracy.

  The Ultra-Chron Carbon is fitted with a black technical fabric strap featuring a titanium buckle. Embracing dark tones, the watch is presented in a bespoke black box.