Amanico's pictorial review of the Jaeger-LeCoultre Reverso Gran Sport Chronograph offers a focused look at a distinctive and technically interesting timepiece. This article provides a comparative analysis with its predecessor, highlighting the Gran Sport's unique blend of sportiness and horological content, making it a valuable resource for collectors interested in JLC's chronograph innovations.
The Reverso Chronograph in rose gold was issued in 1996. The Gran Sport Chronograph came 5 years after, in steel or yellow gold.
A bit bigger and thicker than the Reverso Chronograph, the Gran Sport Chronograph is less elegant, indisputably, but sportier, cooler, especially with the rubber strap.
The case size is 43, 5 mm x 28, 3mm for a height of 12, 6 mm. We are a bit above the GT case, indeed.
The movement ( Cal 829 ) borrows the same specificities than the Cal 859, but receives finishings of a lower level.
We have a rectangular shaped manual winding 30 minutes retrograde chronograph on the back side, while the recto shows the time. Original and still unique, to date.
Here is the steel white dial version on rubber I saw some weeks ago:

Something we rarely see, the complex case back.
With only 5 ATM water resistance, don't try to swim with it, you could be disappointed.
But you have a very cool, sporty watch, with some horological content.
This Reverso Gran Sport Chronograph is a good old temptation, which I will have to achieve, one day.
Best,
Nicolas