[JAEGER - LECOULTRE Watches] AZ 2020 New Jaeger-LeCoultre Jaeger LeCoultre MASTER CONTROL Master Collection The only version consistent with the genuine product Automatic winding system: AZ version movement is two-way winding Other versions of the market are one-way uplink Automatic winding noise: The AZ version only has a slight chain sound, which is the same as the genuine product Other versions on the market are the noise caused by the automatic rotation rubbing the caseback and movement deck Structure of the movement: The AZ version of the movement opens the mold by disassembling the same genuine movement Achieve basically the same structure It's clear at a glance whether it's true or false