Yes it is a very nice Zenith. Some guy was selling out his watches to fund for his El Primero and I was happy to win this one
The case measures 34 mm without crown. The crown diameter is 5 mm but it's to big for this case I think. It should fit the concavity of the case. Also the stem is a little to long but that can be fixed. Maybe an old crown with logo would be nice! Here's a pic of movement. Thanks!