Rolex Daytona 4030 movement tear down

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

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