The Rolex Forums   The Rolex Watch

ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX

Old 20 April 2020, 02:26 AM   #1
Joergen
2021 Pledge Member
 
Join Date: Dec 2018
Location: Sweden
Posts: 1,681
Rolex Helium Escape valve beginners guide

A guide to Rolex Helium escape valve. Hopefully it can bring someone value!

https://millenarywatches.com/rolex-helium-escape-valve/
Joergen is offline   Reply With Quote
Old 20 April 2020, 12:00 PM   #2
watchmavan
"TRF" Member
 
watchmavan's Avatar
 
Join Date: Oct 2016
Real Name: Michael
Location: Melbourne, Aust
Watch: Polar Explorer 165
Posts: 821
Not too shabby an explanation but this also highlights the utter pointlessness of Omega's HEV. It is a total waste of time and design given it must be manually operated to open and close. There's another HEV at 3 o'clock that works on the same way.


And for those that say ooohhhhhh, don't use the crown, it's too much stress, I call, bull$>!t.


Sent from my iPhone using Tapatalk Pro
watchmavan is offline   Reply With Quote
Old 20 April 2020, 08:59 PM   #3
padi56
"TRF" Life Patron
 
padi56's Avatar
 
Join Date: Jun 2005
Real Name: Peter
Location: Llanfairpwllgwyng
Watch: ing you.
Posts: 47,159
Quote:
Originally Posted by watchmavan View Post
Not too shabby an explanation but this also highlights the utter pointlessness of Omega's HEV. It is a total waste of time and design given it must be manually operated to open and close. There's another HEV at 3 o'clock that works on the same way.


And for those that say ooohhhhhh, don't use the crown, it's too much stress, I call, bull$>!t.


Sent from my iPhone using Tapatalk Pro
Most all of that information is already on forum my post way back in 2009 explains more fully.It was in November 1967 that A. Zilbach, a Rolex technician who had worked in close collaboration with COMEX received the Swiss patent number 492,246 for a helium escape valve,shared with Doxa to rush it though. This was the result of experiments carried out with early 5513 Submariners which had been fitted with prototypes of this escape valve.These watches were used by COMEX divers for over 2 years without any problems and so the decision was made to produce a standard watch with this feature; it was, of course, the SD. The largest purchaser of these watches was and is COMEX; every diver who works for the company is issued with one and to prevent the watches from being "misplaced" Rolex print the name of the company on the dial of every watch. COMEX themselves also engrave the rear of the watch with their name and a unique serial number.The HEV is just a one way valve fully automatic on the SD and DSSD its for saturation divers who work underwater and reside at depth in dry chambers at the same outside water pressure.The gas they breath high helium content the gas particles are that small they can pass thought the watch crystal seals etc.And when the divers are being re-compressed to normal atmosphere pressure, any gas thats in the watches escapes though the HEV valve. Other wise the gas would expand with the rise to normal atmospheric pressure, and the weakest point the crystal would most probably explode.A normal scuba diver would have no need to use the HEV on any watch.Think of it this way take a balloon down to 10m underwater. That is 2 atmospheres one water, one surface air pressure.Now fill that balloon with compressed air at that pressure of 2 atmospheres.Because the compressed air is now under-pressure and quite dense, you fill it but the amount of air content would be twice as much as normal above water surface pressure.Now release that balloon and let it go back to the surface because of the return to one atmosphere surface air pressure balloon would expand and burst simply because there was twice as much air in it at normal 1 atmosphere air surface pressure.
__________________

ICom Pro3

All posts are my own opinion and my opinion only.

"The clock of life is wound but once, and no man has the power to tell just when the hands will stop. Now is the only time you actually own the time, Place no faith in time, for the clock may soon be still for ever."
Good Judgement comes from experience,experience comes from Bad Judgement,.Buy quality, cry once; buy cheap, cry again and again.

www.mc0yad.club

Second in command CEO and left handed watch winder
padi56 is offline   Reply With Quote
Old 20 April 2020, 11:32 PM   #4
77T
2021 LVGREEN2 Pledge Member
 
77T's Avatar
 
Join Date: Dec 2010
Real Name: PaulG
Location: Georgia
Posts: 34,737
Quote:
Originally Posted by Joergen View Post
A guide to Rolex Helium escape valve. Hopefully it can bring someone value!



https://millenarywatches.com/rolex-helium-escape-valve/


Thanks for sharing the recent review by Millenary - nice bubble pic, too.

I think our newer members who arenít experts will find it understandable and well illustrated.


Sent from my iPhone using Tapatalk Pro
__________________


Does anyone really know what time it is?
77T is online now   Reply With Quote
Old 22 February 2021, 06:17 PM   #5
Boaters
2021 Pledge Member
 
Join Date: May 2015
Real Name: Mike
Location: Pacific Northwest
Watch: 116610LV 16710 SD
Posts: 8,744
Great info thanks.
Boaters is offline   Reply With Quote
Old 22 February 2021, 06:27 PM   #6
Andad
2021 LVGREEN2 Pledge Member
 
Andad's Avatar
 
Join Date: Nov 2006
Real Name: Eddie
Location: Australia
Watch: 14060M
Posts: 32,465
An old thread but:

The information from Millenary Watches is proof of their lack of understanding.

Water can’t get past a one way HE valve mainly because it doesn’t operate when under water.

As for the manual HE valve how would a wearer know when to open it without knowing when the internal pressure is about to blow the crystal off.

Millenary Watches didn’t know the internal pressure that will activate the HEV on a Rolex but we know it is about 35 psi.

All in all a pretty useless description of an HE valve by MW.
__________________
E

Andad is offline   Reply With Quote
Old 24 February 2021, 01:09 AM   #7
v1triol
"TRF" Member
 
v1triol's Avatar
 
Join Date: Jan 2017
Location: EU
Posts: 63
Quote:
Originally Posted by watchmavan View Post
There's another HEV at 3 o'clock that works on the same way.
If it is that simple, why manufacturers are installing the HEV's in the first instance?
v1triol is offline   Reply With Quote
Old 24 February 2021, 08:10 AM   #8
watchmavan
"TRF" Member
 
watchmavan's Avatar
 
Join Date: Oct 2016
Real Name: Michael
Location: Melbourne, Aust
Watch: Polar Explorer 165
Posts: 821
Quote:
Originally Posted by v1triol View Post
If it is that simple, why manufacturers are installing the HEV's in the first instance?


For the auto, because it's auto. With the Seamaster it's about them being different. And it is that simple. Helium just needs an avenue to escape when the pressure builds. Getting out via the crown will happen long before it pops the crystal. Saturation divers actually used this method. Remember this is not an issue in the water. It's an issue during decompression I n a dry environment in casual clothes.

The only divers that need this feature anyway are those divers, 99% commercial, that five deap enough and long enough where the air tanks are given a component of helium. They are given this to add pressure to their lungs. Being such a small partical, small amounts of helium can get into other places. Ie watch. As air pressure on the body begins to normalize in the watch in the decompression chamber, the helium has to escape, if any has penetrated.

For the Seamaster it's all marketing. I used to hate it, but...



Sent from my iPhone using Tapatalk Pro
watchmavan is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

The Watch Standard

Tempomaterials Straps


*Banners Of The Month*
This space is provided to horological resources.





Copyright ©2004-2021, The Rolex Forums. All Rights Reserved.

ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX

Rolex is a registered trademark of ROLEX USA. The Rolex Forums is not affiliated with ROLEX USA in any way.