Dear All,
My pal recently got a JLC from his uncle as a gift, not sure what the model is and its date of production. It's written 'carnet de rendezvous' with the numbers 421.509 and 1709412 on the case back. It's a unisex size and has a rotatable bezel with a white stone on it.
How do we confirm the item is genunine and is the stone on the bezel a diamond?. Please let me know the details of this particular model....
Thanks & regards,
technician.