WatchProSite|Market|Digest
WatchProSite|Market|Digest

Jaeger-LeCoultre

There is not a necessary relation between

 


The number of jewels and the level of complication, Marcelo.

A GP WW TC has a Date, a Chrono, and a WT function.

Its movement is more than 60 jewels. (!!! )

The U.N Sonata is a big date, Alarm, Alarm Countdown, and Dual Time zone Complication watch.

Its movement is... More than 100 ( !!!! ) Jewels.

Let's take now a Rolex, like a Sub or a GMT: We're a bit more than 30 Jewels, which is not logically linked to a complication, too, as you shown with your JLC example, too.

The jewels were used, if I'm not wrong, to reduce the frictions between the parts of a movement, not necessary in correlation with a more or less complicated watch, AFAIK.

The argument of the number of jewels was used in the past as a marketting argument, when you see the JLC Ads from the '60ies, which quite often quoted it as an evidence that JLC movement are great, nicely finished, etc...

Best,

Nicolas.

This message has been edited by amanico on 2009-03-17 20:26:09

  login to reply
Related Content
expand_more
Jaeger LeCoultreRolex
💰1866 Marketplace Listings for Rolex›
7 Comments view entire thread 

I have wondered about this for a long time now…

 
By: marcelo : March 17th, 2009-18:01
…and finally decided to look for my fellow experts’ opinion. In general terms, the more jewels a movement has the more complicated it should be. The RDM is a 41 jewels movement. The Master Calendar is also a 41 jewels movement but with a full calendar, mo... 

I forgot to say that…

 
By: marcelo : March 17th, 2009-18:11
…all the three models movements I’ve referred to have more parts than the RDM’s, but the jewels number question stays open Marcelo

There is not a necessary relation between

 
By: amanico : March 17th, 2009-20:25
The number of jewels and the level of complication, Marcelo. A GP WW TC has a Date, a Chrono, and a WT function. Its movement is more than 60 jewels. (!!! ) The U.N Sonata is a big date, Alarm, Alarm Countdown, and Dual Time zone Complication watch. Its m... 

Some brands even used to put the number of jewels on the dial!

 
By: Starman : March 18th, 2009-05:00
My answer would be the more moving parts; the more jewels. I understand that Rolex tries to reduce parts, so less moving parts, hence less friction and no need for loads of jewels. Somewhere I read that the Valjoux 7750 uses nylon parts in the movement wh...