I'll tell you guys what happened to me so far in this process.
I ordered two SS (1 38mm and 1 42MM) with Milanese band on the same order a few minutes after ordering started.
The 38 showed a 4/24-5/7 ship and the 42 had 5/13-5/27.
On 4/20 my credit card got the charge for the 38. It didn't change to a preparing for shipment until 4/22. It moved to ship status on 4/23 and was delivered on 4/24.
Also on 4/24 my credit card got the charge for the 42. Status on it is still at processing, but as of today the charge was reversed! The expected delivery date is still sitting at 5/13-5/27. So who knows when it will actually be shipped.