Longines Chronographe GMT GrandeVitesse

By Florian Matrion - September 21, 2011
Chronographe GMT GrandeVitesse Diaporama
Let's review a watch conceived to measure record-breaking land speeds thanks to an unusual tachometer scale! TWO has tested for you the Chronograph GMT GrandeVitesse. Without rushing. Review.
Exclusive! review of the Chronographe GMT GrandeVitesse. Manufacturer data, photos, editor's opinion and watch retail price on thewatchobserver.co.uk
Editor's opinion
Users' rating

Slide show = 15 pictures to see this watch under all of its angles



The land speed record is currently held by the supersonic vehicle Thrust SSC driven by Andy Green, a British ex-fighter pilot.

In October 1997, the Thrust SSC reached the speed of 1,227.985 km/hr over a distance of a mile (1.609 km) in the Black Rock desert in Nevada, thus officially breaking the sound barrier for the first time!

This incredible record puts to shame the Budweiser Rocket's claims that already boasted in 1979 to have broken the sound barrier during an unofficial attempt...
We are indeed very far from the record of 293.73 km/hr (comical in retrospect) set by Burt Monro on his 850cc Indian back in 1967...

Since all these records were measured in miles per hour (MPH), the Longines Chronograph GMT GrandeVitesse offers a MPH scale on its tachometric bezel along with another one in km/h ending with the counting of Machs (no less!), the unit of measure for supersonic speed.

All this for pleasure, of course!
Because in addition to the probability of finding oneself behind the controls of such a vehicle being minuscule, by the time you're done activating the chronograph, the mile is almost over anyway...
We won't even mention the fact that letting go of your supersonic vehicle's controls to activate the chrono might have disastrous consequences...


This Longines Chronograph GMT GrandeVitesse will easily seduce the connoisseur looking for practical watch that is virile and wearable on any occasion.

A watch that exudes power

Let's leave those American salt lakes behind and focus on this Longines.

The first good impression: with its substantial weight (203 grams still), the thick case along with the large steel strap sit comfortably on your wrist and vanish from your mind once your arm gets used to it.

The surface treatment of both the case middle and the strap, alternating between polished and brushed surfaces, along with the lugs' curves going down on the wrist, produce an overall look with flexible and balanced lines, while emanating a sense of power and robustness.



The chronograph's push-buttons and the crown accentuate the “technical instrument” aspect of the watch, without being excessive: the head of the release's push-button is red, and that of the reset is checkered, same as the crown's perimeter, thus ensuring an easy grasp.

We also find this grid pattern on the bezel's circumference.
While the aesthetic effect is positive, it serves no practical purpose since the tachometer bezel is necessarily fixed.



The activation of the chronograph function of this Longines requires a firm and relatively long push (proportionately-speaking), and the same is true for the reset.


The surface treatment of the push-buttons ensures an easy grap.

We see here the characteristics of the ETA (ex Valjoux) 7754 movement: reliability and sturdiness - which are a perfect fit for this type of instrument.

The see-through case back lets you see the movements of the chronograph's cams, and the spinning of the rotor ensuring the functioning of the automatic winding mechanism.

The rotor's surface treatment is of a high quality: Côtes de Genève, sunray finish, “Longines” gold engraving, and circular-graining of the plates.



Silver background, steel applied hourmarkers, black guilloche sub-dials, hour and minute rhodium-plated luminescent hands (a little short, unfortunately): the overall result is balanced and benefits from a very high production quality for this price range.

The readability is itself very good, day or night.


The Longines Chronograph GMT GrandeVitesse offers a MPH scale on its tachometric bezel along with another one in km/h ending with the counting of Machs, the unit of measure for supersonic speed.

The large red hand for the chronograph's seconds has its own dedicated indexing on the outer flange of the internal bezel.
It's a real improvement for the accuracy of the time countdowns, compared to the normal graduation of the minutes (which has only four markers).

The steel hands of the chronograph's counters (the one for the minutes located at 12 o'clock, and the one for the hours at 6 o'clock) have red-painted tips.
The visual aspect is a success. However, had those hands been a little bigger, it would likely have further improved their readability.

It's worth noting, to our great delight, that the countdown of the minutes happens with very distinctive jumps, and not with a continuous movement, as is too often the case with chronographs.


To end this tour, this Longines' GMT function (2nd time zone) stays discreet while remaining visible, and doesn't get in the way of reading the other indicators. This function works with a luminous red hand that electrifies the dial. Its setting with the crown is also easy.



With this Chronograph GMT GrandeVitesse, Longines offers us a sturdy watch that remains nevertheless elegant.
With its high level of production quality, and relative affordability, this watch will easily seduce the connoisseur looking for practical watch that is virile and wearable on any occasion.



  • overall a well-balanced watch
  • an all-around sturdy piece
  • a multipurpose watch
  • excellent value for money



  • the date change is not instantanuous
  • the polished surface on the central part of the strap, prone to micro scratches
  • a level of waterproofness that is a little disappointing for such a sporty-looking watch
  • its weight


Complementary Information:

  • the advertised price in the Manufacturer Data sheet is the watch's official retail price in France at the time of the review's publication on the French version of the website
  • Reviewer's wrist size = 17.5cm
15 pictures to see this watch in all its angles
Click on one photo to enlarge the watch gallery
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse
  • Chronographe GMT GrandeVitesse

Manufacturer data

Brand Longines
Model name Chronographe GMT GrandeVitesse
Reference number L3 637 4
Case material Steel
Case diameter (without crown) 44mm
Case diameter (crown included) 47.97mm
Movement type Automatic
Calibre Caliber L686
Calibre base ETA 7754
Functions Second
Crystal Single-face crystal with anti-reflective coating
Power reserve ability 46h
Transparent back Yes
Lug width 21.85mm
Length from lug to lug 51.89mm
Case thickness 14.59mm
Water resistant 50 m
Strap material Steel
Clasp type Deployment clasp
Clasp type Steel
Total weight 203 grams
Retail price France at 2011/09/21 2,250.00 € calc

Editor's opinion 65.5/100

Confort (/15) 13
more Movement (/20) 9.5
Movement Optimisation / Garnishment (/5) 2
Ease of handling and adjustment (/5) 4
Movement control proceeded by the Manufacture / horlogical awards (/3) 0
Power reserve ability (/2) 1
Complications (/5) 2.5
more Finishing (/20) 12.5
Dial finishing (/6) 4
Case finishing (/6) 4.5
Quality of garnishment / caseback engraving quality (/2) 1
Crystal quality (/4) 2
Clasp finishing (inner and extern) (/2) 1
more Practicality (/20) 12.5
Diurnal legibility (/5) 5
Night legibility (/4) 3
Water resistant (/3) 0.5
Strap : ease of size adjustment + ease of substitution (/4) 1
Clasp : quality and safety (/4) 3
more Bonus (/10) 3
Limited edition (/3) 0
Watch delivered with several straps (/2) 0
Quality of the watch box (/1) 1
Portability with shirtsleeves buttoned (/2) 1
Goodies included (/1) 0
Understandability of the brochure (/1) 1
Value for money (/15) 15
When to wear it ?
For a weekend in Salt Lake City!

Users' rating 84/100

Confort (/15) 13
Movement (/20) 16.5
Finishing (/20) 17.5
Practicality (/20) 17
Bonus (/10) 7
Value for money (/15) 14.5
Rate this watch
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    Hello, First off, thank you for this article. I've tried the steps above but not getitng lucky. Basically whenever daylight savings switched I went to change the time. This being my only actual chronograph watch I think I did something to make it get out of whack without knowing what I'm doing . I have an Invicta 4578 model. The big second hand is stuck at minute #1 and when the crown is pressed into position zero the 3h 0-60 counter runs but the big second hand is stuck. Upon trying to reset to zero with the directions provided I noticed the center stop doesn't rotate 360 when in crown position 2 and pressing A &B for 2 seconds. It (6h) only does anything in position zero and continuously rotates when I press B once in position 0. Sorry if this is confusing. Is there anything in particular you may know about this model? Initially adjusting the time I was just messing with it without instructions, go figure Thanks in advance for reading.

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    Hi Miki, that's weird, it does not show anymore. Maybe the link has chnaged but I still cannot find the watch anymore. My guess would be that they don't have it anymore.Thanks,James

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    This LOngines has been a long time on my wish-list. But not anymore because of its weight! Such a shame because I do appreciate its design...