The "club" line was an effort by Jaeger LeCoultre to produce "affordable" watches in the 1970's, at a time when the luxury swiss watch industry was facing very strong adversity caused by the rise and success of the relatively inexpensive quartz watches from Japan.
Many swiss brands died during these years and the remaining ones tried various ways to survive in these difficult years.
Jaeger leCoultre during that period has tried to offer a lower-end range of watches, which used outsourced movements (something they hadn't done in the past, and haven't done again since).
These were called the "club" line.
So, the bad news is that your watch, despite the appealing name on the dial, is not really on par with the rest of Jaeger LeCoultre production.
On the other hand, the good news is that the movement inside the watch is very common (AS1906) and therefore maintenance or future repairs will be easy and inexpensive !
Back to your question, it means that your watch can be serviced by the 'average' watch maker and doesn't really require a special (and expensive) care by Jaeger LeCOultre.
A new generic crystal could cost as low as 5$ if you find the proper repairman, and cost of replacing it shouldn't be more expensive as it is a straightforward operation. Of course, other repairmen might charge significalntly higher, depending on who you ask...
Now, here is the picture of the movement that you requested.... be careful, take children out, I have warned you !!!
here we go


