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Ragu · 18 February 2007, 12:17 PM

I've been reading how my Sub-No date has more jewels than a regular Sub Date.
Because it has no-date thus fewer mechanical parts it does have more "jewels".
OK, what do jewels actually do and how is the total # of jewels derived?

Please forgive my ignorance here

Alcan · 18 February 2007, 12:27 PM

Jewels, specifically synthetic rubies, are bearings against which shafts rotate. For more detailed info, click this link:

http://www.timezone.com/library/workbench/workbench0025

Ragu · 18 February 2007, 12:28 PM

here's what I've been looking/reading

http://elginwatches.org/help/watch_jewels.html

Ragu · 18 February 2007, 12:31 PM

Alcan,
Thanks, more to read

Alcan · 18 February 2007, 12:36 PM

Quote:

Originally Posted by Ragu

Alcan,
Thanks, more to read

Yep. The more we all read and research, the more knowledge we all have to share.

miner · 18 February 2007, 12:42 PM

Thanks Guys, an interesting read!

tonelar · 18 February 2007, 03:38 PM

Quote:

Originally Posted by Ragu

I've been reading how my Sub-No date has more jewels than a regular Sub Date.
Because it has no-date thus fewer mechanical parts it does have more "jewels".

Wow, I've never heard that before. That's interesting. How many jewels do they have?

JJ Irani · 18 February 2007, 04:33 PM

Quote:

Originally Posted by Ragu

I've been reading how my Sub-No date has more jewels than a regular Sub Date.
Because it has no-date thus fewer mechanical parts it does have more "jewels".
OK, what do jewels actually do and how is the total # of jewels derived?

Please forgive my ignorance here

FYI, the number of jewels in the present nodate Sub and Sub-date are same - 31 jewels. At no time has the no-date SUb ever had MORE jewels. Au contraire, at one time the no-date Sub had only 27 jewels with the older movement.

It was after the introduction of the 14060M model that the number of jewels are now the same, i.e. 31.

Jewels act as "ball bearings" in the movement and are localised between the moving parts. They are actually synthetic rubies and act as friction bearers to reduce wear and tear between the numerous moving parts.

In a Rolex all 31 jewels are FUNCTIONAL. Some watch manufacturers use the number of Jewels as a marketing ploy - so a buyer thinks the more the jewels the better the watch - which is all BS.

The actual FUNCTIONAL jewels in a watch are all that really matter. The rest, if any, are redundant!!

JJ

Ragu · 18 February 2007, 11:02 PM

JJ,
Thanks for clearing up the # of jewels

Also a good read,

http://people.timezone.com/mdisher/a...135/3135_1.htm

nko51 · 19 February 2007, 01:43 AM

Usually rubies used at the moving pivot points in the movement.

18 February 2007, 12:17 PM	#1
Ragu "TRF" Member Join Date: Jan 2007 Real Name: Ragu Sauce Location: Southern, FL Watch: the Sauce ;) Posts: 782	OK..can someone explain "jewels"... I've been reading how my Sub-No date has more jewels than a regular Sub Date. Because it has no-date thus fewer mechanical parts it does have more "jewels". OK, what do jewels actually do and how is the total # of jewels derived? Please forgive my ignorance here __________________ "Waiting is so time consuming" -- Unknown Proud Member #2391

18 February 2007, 12:27 PM	#2
Alcan 2024 Pledge Member Join Date: Nov 2006 Real Name: Al Location: Way Up North Watch: your P's & Q's Posts: 10,473	Jewels, specifically synthetic rubies, are bearings against which shafts rotate. For more detailed info, click this link: http://www.timezone.com/library/workbench/workbench0025 __________________ Member #1,315 I don't want to get technical, but according to chemistry alcohol IS a solution!

18 February 2007, 12:28 PM	#3
Ragu "TRF" Member Join Date: Jan 2007 Real Name: Ragu Sauce Location: Southern, FL Watch: the Sauce ;) Posts: 782	here's what I've been looking/reading http://elginwatches.org/help/watch_jewels.html __________________ "Waiting is so time consuming" -- Unknown Proud Member #2391

18 February 2007, 12:31 PM	#4
Ragu "TRF" Member Join Date: Jan 2007 Real Name: Ragu Sauce Location: Southern, FL Watch: the Sauce ;) Posts: 782	Alcan, Thanks, more to read __________________ "Waiting is so time consuming" -- Unknown Proud Member #2391

18 February 2007, 11:02 PM	#9
Ragu "TRF" Member Join Date: Jan 2007 Real Name: Ragu Sauce Location: Southern, FL Watch: the Sauce ;) Posts: 782	JJ, Thanks for clearing up the # of jewels Also a good read, http://people.timezone.com/mdisher/a...135/3135_1.htm __________________ "Waiting is so time consuming" -- Unknown Proud Member #2391

18 February 2007, 12:42 PM	#6
miner "TRF" Member Join Date: Jul 2006 Location: Perth, Australia Posts: 1,294	Thanks Guys, an interesting read!

19 February 2007, 01:43 AM	#10
nko51 "TRF" Member Join Date: Feb 2007 Real Name: Alex Location: USA Watch: TT Blue Sub Posts: 2,542	Usually rubies used at the moving pivot points in the movement.

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