This 7002 was sent to me in pieces for an overhaul with a new crystal to install. I received it in pieces with a 31.5 mm sapphire crystal. My 1st thought was the wrong size crystal but after looking closer at the case I realized it was the correct crystal, but it was a SKX case. Quite the franken mod with all AM parts. Before doing anything I contacted the owner to let them know what he had. Anyways the overhaul went fine with 1 little glitch. The 1 piece stem/crown assembly doesn’t quite fit right. The crown doesn’t seat all the way and bottoms out at less than half a turn. It also won’t disengage the keyless works. I tried one of mine to check and that works just fine. Got a SKX crown and a new stem on order to fix that issue. Just a bad AM I’m guessing. Overhauled the movement, new crystal, replaced the missing pip.