ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX
22 January 2010, 04:25 PM | #1 |
"TRF" Member
Join Date: Mar 2008
Real Name: G
Location: SF Bay Area, CA
Watch: Sub N/D
Posts: 35
|
Spring pin strength
How much force, psi, or torque can a spring bar on a sub take? Could wearing the watch too tight and then flexing of your wrist ever create enough force to cause pin damage?
|
22 January 2010, 11:45 PM | #2 |
"TRF" Life Patron
Join Date: Jun 2005
Real Name: Peter
Location: Llanfairpwllgwyng
Watch: ing you.
Posts: 52,117
|
I would most seriously doubt it a few years back I was left dangling over the side of a dive boat.My SD bracelet got caught up it held my almost 15 stone weight for several minutes before lug pin failed.And a good job it did watch was lost to the abyss but I still got my wrist.
__________________
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 |
22 January 2010, 11:51 PM | #3 |
Banned
Join Date: Dec 2009
Real Name: Paul
Location: New Haven, CT
Watch: 116610 Sub-C
Posts: 6,552
|
Cheap pins will bend, and break easily. The major brands tend to have more solid pins that handle plenty of abuse. Your Rolex should have strong ones from the factory. Don't go cheap!
|
23 January 2010, 03:01 AM | #4 |
TRF Moderator & 2024 Patron
Join Date: May 2007
Real Name: Larry
Location: Mojave Desert
Watch: GMT's
Posts: 42,991
|
SEL's capture the main body of your spring-bar, so bending is unliikely at the SEL... the strength then, relies on the shear strength of the pivot pin at the end of the bar..
on an SEL that pin diameter is .88mm, and the shear strength could probably be found for a ss rod of that small diameter.. On the lug-hole cases the spring bar pivot is 1.2mm, but because the non-SEL capture tube is narrower than the capture area of an SEL, there is likely to be some flex of the bar.. The bracelet is most likely to fail at the connection point of the bracelet/clasp rivet where torsional loads would be highest.......
__________________
(Chill ... It's just a watch Forum.....) NAWCC Member |
23 January 2010, 04:27 AM | #5 |
"TRF" Member
Join Date: Mar 2008
Location: GMT+1
Posts: 2,711
|
Watchmaker at this forum recently said this on a thread where different questions where asked to him in his capacity as a Rolex watchmaker:
"I will say though, with a new set of springbars installed, I have seen a SD support 120Kg of weight. Not an official test I must ad. But I saw it with my own eyes." Best, A |
23 January 2010, 08:17 AM | #6 |
"TRF" Member
Join Date: Mar 2008
Real Name: G
Location: SF Bay Area, CA
Watch: Sub N/D
Posts: 35
|
Thanks for all the informative responses.
|
23 January 2010, 05:09 PM | #7 |
Banned
Join Date: Jul 2008
Real Name: Wade
Location: TN
Watch: 116619
Posts: 2,659
|
These replies are good news, I was a little worried. I bent the ends of both of my springbars putting on a NATO strap.....didn't seem like much force was exerted at all.
|
24 January 2010, 03:04 AM | #8 | |
TRF Moderator & 2024 Patron
Join Date: May 2007
Real Name: Larry
Location: Mojave Desert
Watch: GMT's
Posts: 42,991
|
Quote:
Original issue watches for NATO style straps had solidly welded bars...
__________________
(Chill ... It's just a watch Forum.....) NAWCC Member |
|
2 December 2011, 09:47 AM | #9 |
"TRF" Member
Join Date: Nov 2011
Location: bologna
Posts: 4
|
I think the weakest of a bracelet is the rivet of the clasp
|
9 December 2017, 12:06 AM | #10 | |
"TRF" Member
Join Date: Mar 2011
Location: N/A
Watch: the girls
Posts: 7,095
|
Quote:
__________________
Best George "Also remember that feet don't get fat and a watch will always speak volumes." Robert Johnston --------------------- *new*https://youtu.be/EljAF-uddhE *new * http://youtu.be/ZmpLoO1Q8eQ IG @passionata1 |
|
31 December 2017, 02:33 PM | #11 |
"TRF" Member
Join Date: Nov 2017
Location: Florida
Watch: 5513,Hulk,GMTII
Posts: 364
|
A friend of mine was Wind Surfing and caught his Strap on a fixture of the Sail. The Strap broke(he thinks)or the Spring Pin. All he heard was "Blub" A Rolex will Not Float ! Have a Watch Maker inspect your Pins every so often. Don't wait for the five year service.
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
Thread Tools | |
Display Modes | |
|
|
*Banners
Of The Month*
This space is provided to horological resources.