ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX
29 August 2018, 09:34 PM | #1 |
Banned
Join Date: Aug 2018
Real Name: achille
Location: Grosse Pointe Mi.
Watch: 16613 serti 18078
Posts: 446
|
Difference between 18k and ss ?
If you have 2 Oysters rated for 100m, one is make out of 18k and the other ss. Wouldn't the 18k case back be thicker than the ss to make up for it being a softer material ? Anyone have answers or better pic to show the difference? Exaple would be 36 DD and a 36 DJ !
|
30 August 2018, 12:47 AM | #2 |
Banned
Join Date: Jul 2017
Real Name: Jaime
Location: Here
Posts: 5,606
|
No. 18K is not as soft as you think, and it is able to achieve the same waterproofness rating as stainless steel. Steel Subs are exactly like 18K solid gold Subs. Same 1000ft. rating, regardless of metal. Case back, case, crown, bracelet all the same. Only difference is solid gold cases have a bit more material milled out of the inside where movement sits.
|
30 August 2018, 05:58 AM | #3 |
2024 Pledge Member
Join Date: Jan 2008
Real Name: Tony
Location: Boston North
Watch: Meteorite Daytona
Posts: 1,456
|
I'm an engineer by day but can only guess. My feeling is that at 100m the seals are doing most of the work.
Obviously the really deep divers like the DSSD require a lot more material.
__________________
Pepsi GMT/SD43/DSSD Blue/ DJ41 TT Rose Diamond Dial/ Daytona Meteorite/ SS Sky Dweller White Dial/ IWC Bronze Big Pilot/ Aquanautic Super King / Omega Ploprof 1200 / Graham Scarab Diver |
30 August 2018, 10:47 AM | #4 | |
"TRF" Member
Join Date: Dec 2012
Real Name: Adrian
Location: Dallas
Watch: 218235 BronzeWaves
Posts: 760
|
Quote:
Sent from my iPhone using Tapatalk
__________________
Sea-Dweller 16600 Day-Date II 218235 Cellinum 5240/6 Speedmaster 125 |
|
30 August 2018, 06:50 PM | #5 |
Banned
Join Date: Aug 2018
Real Name: achille
Location: Grosse Pointe Mi.
Watch: 16613 serti 18078
Posts: 446
|
Thank you all for the info especially Adrian for the pictures.
|
1 September 2018, 05:55 AM | #6 | |
2024 Pledge Member
Join Date: Feb 2018
Location: USA
Posts: 6,171
|
Quote:
Another example is the 18K yellow gold Sub Date. It's rated to 300m/1000ft and retains the same case and case back dimensions as its stainless counterpart. That's good for over 30 ATM / 450 PSI (since they have safety margins) without case or back deformation. The beauty of the system is that as pressure increases, the seals get stronger up until the point of failure -- which is by my best guess at least 25% higher than the respective water resistance rating. HTH |
|
1 September 2018, 02:32 PM | #7 |
"TRF" Member
Join Date: Jan 2012
Real Name: Chris
Location: Austin
Watch: 6 digit Rolex+APRO
Posts: 1,533
|
I wonder if this is why there is no precious metal DSSD.
Maybe someone did the math and the PM’s couldn’t handle the pressure? |
2 September 2018, 07:44 PM | #8 | |
2024 Pledge Member
Join Date: Feb 2018
Location: USA
Posts: 6,171
|
Quote:
But, I've not done any math. I'm just guessing based on market demand. |
|
3 September 2018, 06:13 PM | #9 |
Banned
Join Date: Jan 2017
Location: London
Posts: 48
|
The upside of SS is it’s corrosion resistance the down side is it’s a little soft hence the many dented Rolex case pictures you can google online
|
3 September 2018, 08:42 PM | #10 | |
2024 Pledge Member
Join Date: Feb 2018
Location: USA
Posts: 6,171
|
Quote:
The discussion in this thread is 18K gold alloy versus stainless specifically in terms of water resistance. |
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|
*Banners
Of The Month*
This space is provided to horological resources.