This year, the Longines HydroConquest GMT line has been enhanced with new models with 43 mm diameter cases. Water-resistant up to 30 bar (300 metres), robust, and with a unidirectional rotating ceramic bezel, screw-in crown and screw-down case back, this collection is inspired by the world of water sports. Like the 41 mm models launched in 2023, the new HydroConquest GMTs feature an exclusive Longines movement with multiple time zones and offer a choice of colours and materials.
Combining performance and style, Longines HydroConquest watches are designed for those who love pushing back boundaries and exploring new horizons. First launched in 2007, the collection was expanded last year with a series of 41 mm diameter GMT models with a completely new design.
The HydroConquest family has now been expanded with new 43 mm diameter models. Alternating polished and satin-brushed faces, this new-generation stainless steel case with screw-down back houses the exclusive Longines GMT calibre L844.5, equipped with a silicon balance-spring and innovative components made of non-magnetic materials. This movement’s resistance to magnetic fields is more than ten times greater than the ISO 764 reference standard. It boasts extreme precision and a power reserve of up to 72 hours.
The new Longines HydroConquest GMTs offer a choice of a black, blue or green dial, and feature a sapphire crystal with a multi-layer antireflective coating. The indexes are coated with Super-LumiNova®, for easy reading in all conditions. They are round at 6 and 9 o’clock, and triangular at 12 o’clock. The date is displayed clearly through the window at 3 o’clock. The arrow-shaped GMT indicator matches the colour of the dial decals. On the bezel, the 24-hour scale is displayed in two tones to mark the transition between night and day.
Longines HydroConquest GMT watches are water-resistant up to 30 bar (300 metres) and feature a screw-in crown. Another asset for water sports enthusiasts is the watch’s unidirectional notched ceramic bezel, fitted with a luminescent capsule.
The new models are paired with stainless steel bracelets with H-shaped links, or blue or black rubber straps. For added comfort, all bracelets feature a double-safety folding clasp with micro-adjustment.
The GMT function
The GMT complication watch is intrinsically linked to the brand’s history and pioneering spirit. In 1911, Longines filed a patent for the first pocket watch displaying two time zones. And as early as 1908, a model designed for the Ottoman Empire (Turkey) could convert Turkish time into Western time. In 1925, the brand produced for the first time a series of wristwatches displaying a second time zone. This history is still being written today, with several flagship models such as the Longines Spirit Zulu Time, the Longines Master Collection GMT and the HydroConquest GMT.
About Longines movements
Backed by centuries of watchmaking expertise, Longines has pioneered many technical advances and still
displays an unfailing will to innovate. Its constant pursuit of excellence has led Longines to equip all its automatic timepieces with cutting-edge movements whose features include a silicon balance-spring. Silicon is not only lightweight and corrosion-resistant, but also unaffected by normal temperature fluctuations and magnetic fields. Its unique properties boost the watch’s precision and longevity and allow Longines to guarantee these models for 5 years.
Longines HYDROCONQUEST GMT Technical Specifications
References
- L3.890.4.06.6
- L3.890.4.56.6 / 9
- L3.890.4.96.6 / 9
Functions
- Hours, minutes, seconds
- Date at 3 o’clock
- GMT
Movement
- Self-winding mechanical movement
- Exclusive Longines calibre L844.5
- 11½ lines, 21 jewels, 25’200 vibrations per hour
- Magnetically resistant (ISO 764), with silicon balance-spring
- Power reserve: up to 72 hours
Case
- ⌀ 43 mm, thickness 12.90 mm
- Round, stainless steel
- Sapphire glass with multi-layer anti-reflective coating on both sides
- Unidirectional rotating bezel with ceramic insert featuring a capsule with
- Super-LumiNova® treatment on the triangle at 12 o’clock
- Screw-in crown
- Screw-on case back
- Distance between lugs: 22 mm
- Up to 30 bar (300 metres)
Dial
- Green, black or blue sun ray with two-tone 24-hour transfer
- Applied indexes, with Super-LumiNova® treatment
- GMT marking above 6 o’clock
Hands
- Polished gold-plated, with “old radium” Super-LumiNova® treatment
- Polished rhodium-plated, with Super-LumiNova® treatment
- GMT hand with black, orange or blue tip,
- with Super-LumiNova® treatment
Strap
- Stainless steel on the models with green, black and blue dials
- Black rubber on the model with black dial
- Blue rubber on the model with blue dial
- Double safety folding clasp and pusher-operated opening mechanism;
- micro-adjustment
About Longines
Longines has been based in Saint-Imier in Switzerland since 1832. Its watchmaking expertise reflects a strong devotion to tradition, elegance and performance. With many years of experience as a timekeeper for world championships in sport and as a partner of international sporting federations, Longines has forged solid and lasting links with the world of sport over the years. Known for the elegance of its timepieces, Longines is a member of the Swatch Group Ltd, the world’s leading manufacturer of horological products. The brand with the winged hourglass as its emblem has outlets in over 150 countries.