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ecdc · 29 March 2019, 08:46 AM

My Daytona just got back from warranty service. It's a 2015, but was losing lots of time and the chrono didn't always reset properly. It was fixed and is now perfect again.

We all hear how Rolex improves movements without making a big deal of it. Anybody know if there have been any updates to the 4130 in the past 4 years, so that my Daytona came back better than new?

Ashton_Horologist · 29 March 2019, 09:20 AM

They updated the chronograph seconds wheel to have ‘spring loaded’ type teeth. This eliminates the need for a friction spring underneath.

They also change the 4th wheel in connection with that, as the part that ingages the clutch wheel from the base movement also has these new teeth. I am not exactly sure when this came out though...

WWC · 29 March 2019, 09:35 AM

Quote:

Originally Posted by Ashton_Horologist

They updated the chronograph seconds wheel to have ‘spring loaded’ type teeth. This eliminates the need for a friction spring underneath.

They also change the 4th wheel in connection with that, as the part that ingages the clutch wheel from the base movement also has these new teeth. I am not exactly sure when this came out though...

Will the above be performed on my 2009 daytona once I bring it in for service? Will a complete overhaul cover replacement of all old parts with the new technology?

Crown & Shield · 29 March 2019, 09:51 AM

Quote:

Originally Posted by Ashton_Horologist

They updated the chronograph seconds wheel to have ‘spring loaded’ type teeth. This eliminates the need for a friction spring underneath.

They also change the 4th wheel in connection with that, as the part that ingages the clutch wheel from the base movement also has these new teeth. I am not exactly sure when this came out though...

Very interesting, thanks

ecdc · 29 March 2019, 08:43 PM

Quote:

Originally Posted by Ashton_Horologist

They updated the chronograph seconds wheel to have ‘spring loaded’ type teeth. This eliminates the need for a friction spring underneath.

They also change the 4th wheel in connection with that, as the part that ingages the clutch wheel from the base movement also has these new teeth. I am not exactly sure when this came out though...

Thank you!

29 March 2019, 08:46 AM	#1
ecdc "TRF" Member Join Date: Sep 2015 Location: US Posts: 502	Updates to 4130? My Daytona just got back from warranty service. It's a 2015, but was losing lots of time and the chrono didn't always reset properly. It was fixed and is now perfect again. We all hear how Rolex improves movements without making a big deal of it. Anybody know if there have been any updates to the 4130 in the past 4 years, so that my Daytona came back better than new?

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29 March 2019, 09:20 AM	#2
Ashton_Horologist "TRF" Member Join Date: Jan 2019 Real Name: Ashton Tracy Location: Ottawa, Canada Watch: 1680 Posts: 287	They updated the chronograph seconds wheel to have ‘spring loaded’ type teeth. This eliminates the need for a friction spring underneath. They also change the 4th wheel in connection with that, as the part that ingages the clutch wheel from the base movement also has these new teeth. I am not exactly sure when this came out though...

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