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 order – I have removed the serial number digitally
Cumbria Watch Repair 