ROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEXROLEX
28 September 2019, 09:53 PM | #1 |
"TRF" Member
Join Date: Nov 2018
Real Name: Vance
Location: North Coast
Watch: GMT II
Posts: 1,443
|
18k vs 14k - Differences?
I have an old two-tone Datejust from 1984 that is 14k. I assume that means both bezel and band? What are the differences between the 18k and 14k two tone watches? Someone told me that since the 14k is not as soft, the band will wear better. Is there a difference in value? How about color - can somebody tell by looking that the watch is 14k when compared to 18k? Is there a value difference?
Thanks in advance ... |
29 September 2019, 12:00 AM | #2 |
2024 Pledge Member
Join Date: Oct 2018
Location: Colorado, USA
Posts: 5,904
|
There is more gold in the 18k watch. ;-)
__________________
@oldwatchdan on IG |
29 September 2019, 12:16 AM | #3 |
Banned
Join Date: May 2014
Real Name: John
Location: La Jolla, CA
Watch: Platona
Posts: 12,194
|
The higher the carat, the more gold is in the amalgam. And the more gold, the softness increases, but not by a huge amount. I had one of those TT DJ. I sold mine, but you should do what you want with it. Visually they look the same as current 36mm DJs to my eye.
|
29 September 2019, 12:17 AM | #4 |
2024 ROLEX DATEJUST41 Pledge Member
Join Date: Dec 2010
Real Name: PaulG
Location: Georgia
Posts: 40,718
|
I presume you mean the difference in Datejusts that are 14k vs 18k.
The properties of the gold itself are well documented on the web. Despite the different weight and percentage of gold in the watch, a 14k DJ Thunderbird could have greater value than a routine 18k DJ made just a few years later. So many of the answers depend on the unique characteristics of the watch and it’s condition. Let’s see your DJ... Sent from my iPhone using Tapatalk Pro
__________________
Does anyone really know what time it is? |
29 September 2019, 07:31 AM | #5 |
"TRF" Member
Join Date: Jul 2010
Real Name: Dave
Location: Unknown
Posts: 999
|
The higher the carat, the deeper the yellow color. If you hold a 14k item next to an 18k item, it's pretty clear. 18k is 75% gold (18/24), while 14k is around 60% gold (14/24). Personally, I really like the deeper gold color, but it is softer, so it can be damaged more easily.
|
29 September 2019, 08:14 PM | #6 |
"TRF" Member
Join Date: Dec 2012
Location: Spain
Posts: 18
|
The 18k 14k differences are assuming nothing else changes. In reality other factors can also affect hardness and color. Knowing Rolex it wouldn’t suprise if an 18k modern gold watch was more durable than a 14k vintage watch
|
30 September 2019, 03:46 AM | #7 |
"TRF" Member
Join Date: Jul 2010
Real Name: Dave
Location: Unknown
Posts: 999
|
That's just not true. There is no magic that Rolex can perform to change the nature of a material. Alloying gold with other metals increases the hardness. 18k will always be softer than 14k.
|
30 September 2019, 04:31 AM | #8 | |
"TRF" Member
Join Date: Dec 2012
Location: Spain
Posts: 18
|
Quote:
Look at some of the work Apple has been doing for example on 18k gold. ( I can’t post links but it’s easy enough to find) |
|
1 October 2019, 01:31 AM | #9 |
"TRF" Member
Join Date: Jul 2010
Real Name: Dave
Location: Unknown
Posts: 999
|
There is simply no basis for the view that Rolex is alloying its gold with some "special" metal that somehow makes their 18k gold "more durable" than 14k gold. If you have evidence to the contrary, I'd love to see it.
|
1 October 2019, 01:34 AM | #10 |
"TRF" Member
Join Date: Jun 2017
Real Name: Alyx
Location: Universe
Watch: The Gibeon watch
Posts: 892
|
18K stands for 750 which means 75% 24K gold is implemented.
14K stands for 585 which means 58.5% 24K gold is implemented 18K is most of the time a little darker then 14K.
__________________
2022 126720VTNR Sprite - 2020 126719BLRO Meteorite dial - 2018 126333 DJ41 Wimbledon Dial - 2017 114060 SubC No Date - 2017 116613LN SubC Date Two Tone - 2017 116508 Daytona 18K YG Green Dial |
2 October 2019, 04:00 AM | #11 | |
"TRF" Member
Join Date: Dec 2012
Location: Spain
Posts: 18
|
Quote:
And I stand by what I’m saying: Percent of gold in alloy is not the only factor in hardness or colour, process and materials are also part of the equation. It wouldn’t surprise me if a modern 18 k Rolex was more durable than a 14k one. Neither of these statements are controversial. For the first I suggested you look into Apple. The second is speculation anyway. Do you like arguing for the sake of it? If you want evidence go find it. |
|
2 October 2019, 09:46 AM | #12 | |
"TRF" Member
Join Date: Jul 2010
Real Name: Dave
Location: Unknown
Posts: 999
|
Quote:
|
|
2 October 2019, 01:54 PM | #13 |
"TRF" Member
Join Date: Nov 2010
Real Name: Blank
Location: Romo
Posts: 1,465
|
Which is harder.
14k gold which is 58.5% 24k gold, 41.5% lead 18k gold which is 75% 24k gold, 25% titanium As an example. I think that is what BigJaJa is inferring. We don’t know what the “other stuff” is in 14k/18k gold... and it matters. |
2 October 2019, 02:45 PM | #14 |
2024 Pledge Member
Join Date: Oct 2018
Location: Colorado, USA
Posts: 5,904
|
We aren't talking about exotic alloys here, e.g. modern 18k vs vintage 14k. The question is specifically about 14k and 18k gold used by Rolex, 35 years ago. I think it's reasonable to assume that 18k is softer, and mechanical parts will show slightly more wear, e.g. bracelet stretch. However, if the watch was worn regularly, any two-tone bracelet will likely be badly stretched after 35 years.
The issue of color is trickier. For example, once you start adjusting the alloy composition to achieve a desired hue (e.g. various rose gold tints), all bets are off, and I think it's unlikely someone could distinguish 14k from 18k by eye.
__________________
@oldwatchdan on IG |
2 October 2019, 10:35 PM | #15 |
2024 ROLEX DATEJUST41 Pledge Member
Join Date: Jun 2013
Location: Florida
Posts: 773
|
There are no "magic" gold alloys. Most use the same alloys, only making small increases/decreases to the % to affect the color. Silver, copper, and zinc are the alloys used in almost all yellow gold alloys. Varying the % changes the color. More copper makes rose/pink, more zinc makes green. White gold alloys generally remove the silver, and add nickel, unless it's a white gold/palladium alloy.
|
3 October 2019, 03:47 AM | #16 | ||
"TRF" Member
Join Date: Jul 2010
Real Name: Dave
Location: Unknown
Posts: 999
|
Quote:
Quote:
|
||
6 October 2019, 12:54 AM | #17 |
"TRF" Member
Join Date: Feb 2015
Real Name: Jeff K
Location: Pennsylvania
Watch: Rolex 114060
Posts: 23
|
14k has less gold content making it harder then 18k.. 14k is less likely to stretch as easy as 18k. And less likely to ding or dent. But its gold so it is softer then steel so it will stretch and ding regardless over time with regular wear.
Sent from my SM-N970U using Tapatalk |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|
*Banners
Of The Month*
This space is provided to horological resources.