The Daytona 4030 movement started in 1988 and ran for 12 years as a production movement until the 4130 came along Based on the Zenith El Primero calibre 400, but with a couple of hundred modifications making only a few of the parts interchangeable Photos may not appear in order but have been titled in …
Rolex Daytona 4030 movement tear down
Cumbria Watch Repair 