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Horloger · 8 September 2011, 04:41 AM

How / what equipment does Rolex use to verify that these models are indeed waterproof at the specified depths ?

Rikki · 8 September 2011, 11:32 AM

Very expensive equipment digital depth pressure I believe.

Horloger · 8 September 2011, 12:17 PM

Interesting, presumably if the watch failed during testing it would get damaged - although that would prove less embarrasing than if it failed in the ocean!

Rikki · 8 September 2011, 10:14 PM

I mean that the numbers for the depth are a digital readout it's still a wet test but with no movement inside the case.

Horloger · 11 September 2011, 01:19 AM

If the case is tested without a movement (and passes), presumably it has to be reopened to install the movement at which point the value of the testing is worthless - all the (successful) testing would prove is that the case WAS waterproof BEFORE it was reopened. Surely, a meaningful test HAS to be undertaken after the watch is completely assembled.

denzo · 11 September 2011, 02:58 AM

pretty sure they dont use water

its pressure differential measurements

Andad · 11 September 2011, 11:33 AM

The equipment looks a bit like this for DSSD testing.

Probably explains why your local RSC and AD's can't help you.

What is a differential pressure measurement??

Andad · 11 September 2011, 11:35 AM

Quote:

Originally Posted by Rikki

I mean that the numbers for the depth are a digital readout it's still a wet test but with no movement inside the case.

buddy13 · 13 September 2011, 11:30 PM

I still believe a vacuum test is more reliable....

Though it won't tell you at what crazy pressure the caseback will bend, crystal break etc...

8 September 2011, 04:41 AM	#1
Horloger "TRF" Member Join Date: Sep 2011 Location: Europe Posts: 4	Sea Dweller 1220m and 3900m How / what equipment does Rolex use to verify that these models are indeed waterproof at the specified depths ?

8 September 2011, 11:32 AM	#2
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	Very expensive equipment digital depth pressure I believe. __________________ Century 21 Certified watchmaker Omega Service Provider Trained Omega OWME Certified. Rolex Parts Account Holder.

8 September 2011, 10:14 PM	#4
Rikki TechXpert Join Date: Jun 2009 Real Name: Rik Dietel Location: Seminole Fla Watch: 5512 s/s Sub Posts: 1,818	I mean that the numbers for the depth are a digital readout it's still a wet test but with no movement inside the case. __________________ Century 21 Certified watchmaker Omega Service Provider Trained Omega OWME Certified. Rolex Parts Account Holder.

11 September 2011, 11:33 AM	#7
Andad 2024 SubLV41 Pledge Member Join Date: Nov 2006 Real Name: Eddie Location: Australia Watch: A few. Posts: 37,522	The equipment looks a bit like this for DSSD testing. Probably explains why your local RSC and AD's can't help you. What is a differential pressure measurement?? Attached Images __________________ E

8 September 2011, 12:17 PM	#3
Horloger "TRF" Member Join Date: Sep 2011 Location: Europe Posts: 4	Interesting, presumably if the watch failed during testing it would get damaged - although that would prove less embarrasing than if it failed in the ocean!

11 September 2011, 01:19 AM	#5
Horloger "TRF" Member Join Date: Sep 2011 Location: Europe Posts: 4	If the case is tested without a movement (and passes), presumably it has to be reopened to install the movement at which point the value of the testing is worthless - all the (successful) testing would prove is that the case WAS waterproof BEFORE it was reopened. Surely, a meaningful test HAS to be undertaken after the watch is completely assembled.

11 September 2011, 02:58 AM	#6
denzo "TRF" Member Join Date: May 2010 Location: Cheshire Watch: DJ 116234 Roman N Posts: 197	pretty sure they dont use water its pressure differential measurements

13 September 2011, 11:30 PM	#9
buddy13 "TRF" Member Join Date: Feb 2009 Real Name: Etienne Location: Malta Watch: Orient star 300m Posts: 724	I still believe a vacuum test is more reliable.... Though it won't tell you at what crazy pressure the caseback will bend, crystal break etc...

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