116520 movement

[msdaytona]

Was the 116520 movement the first one made by Rolex? The previous version was by Zenith but I don’t know if Rolex ever made the movements for earlier versions of the Daytona. Thanks

[dcash0615]

The 116520 has an in-house Rolex movement. The previous generation five digit Daytona has a zenith movement. The four digit Daytona is powered by a valjoux movement.

[MSL997]

Originally Posted by dcash0615

The 116520 has an in-house Rolex movement. The previous generation five digit Daytona has a zenith movement. The four digit Daytona is powered by a valjoux movement.

This is bible

[msdaytona]

Originally Posted by dcash0615

The 116520 has an in-house Rolex movement. The previous generation five digit Daytona has a zenith movement. The four digit Daytona is powered by a valjoux movement.

Perfect thank you!

[padi56]

Originally Posted by msdaytona

Was the 116520 movement the first one made by Rolex? The previous version was by Zenith but I don’t know if Rolex ever made the movements for earlier versions of the Daytona. Thanks

The cal 4130 used in the Daytona was first introduced in 2000 and was Rolex first ever in-house made chronograph movement.Plus it was the first movement to use the in-house made parachrome hairspring but back then it was more of a grey colour.

[Tools]

Originally Posted by msdaytona

Was the 116520 movement the first one made by Rolex? The previous version was by Zenith but I don’t know if Rolex ever made the movements for earlier versions of the Daytona. Thanks

The 4130 movement, used in the 116520 was Rolex/Aegler first automatic chronograph movement.

The previous 4030 Rolex modified Zenith movement was used because it was an automatic, and replaced older Valjoux based manual movements

[msdaytona]

Thanks everyone!