Since I am a member of the Dan Wesson Forum (besides my Bruin 10mm, I also have a DW 15-2/V2,6 in 357 mag), they have a voluntary SERIAL NUMBER REGISTRY and make the information available in PDF form:
https://www.danwessonforum.com/wp-content/files/DanWessonSerialNumbers.pdfIn the last published version published by the site (2012), there are SIX (6) 1911s with S/N's ending in CZ (after acquisition).
These have dates listed:
Model CBOB, 45 ACP, stainlessC57702CZ, 2006, original purchaser
C8065XCZ, 2008, original purchaser
C200CZ, 2010, original purchaser
Model VBOB, 45 ACP, coatedVB330CZ, 2010, original purchaser
VB22XCZ, 2010, fired cartridge case date
Model RZ-10, 10mm, stainlessRZ7144CZ, 2007, verified by Dan Wesson
It's not a lot of data, but it's a start!