Hi Nicolas,
thanks for this very attractive presentation. You're right, this model is indeed a must amongst vintage JLCs : I regularly wear mine with inextenguishable pleasure
and would love to find a black version like yours...
I recently read (but cannot recall where exactly) that a limited number of these triple dates, with moonphase, were also produced in the 1980's, using movements that were still available at the manufacture. The case was though slightly bigger than 35 mm.
I cannot remember where the information comes from, but does that ring a bell ?
Best,
Karmin