Model number for the one on the left is E165. Please see the link below:

viewtopic.php?f=3&t=1900

There is a an old JLC catalog picture in there.

Nice watches!
gatorcpa

See this post regarding a very similar watch:

viewtopic.php?f=3&t=1900

Catalog picture inside.
gatorcpa

I believe that the watch is an E165 from the mid-1950's. https://storage.googleapis.com/pubzapuscentral/watchprosite/jlc/91/raw/jlc_image.1846391.jpg I have one like it in steel. http://i7.photobucket.com/albums/y266/gatorcpa/Watch%20Photos/Jaeger-LeCoultre%20Steel/DSC00412.jpg Case number is 669XXX...

Duplicate.

1st one is from the early 1960's. Caliber 528-6. 2nd one is more recent. Probably 1980's or early 1990's. Cal. 540. A fairly reliable method for determining age on these Atmos clocks is to take the serial number, divide it by 20,000, then add to 1954. For example, if the serial number is 300,000, di...

You got a fantastic value. The watch was one of hundreds ordered by Ford Motor Co. to celebrate exceeding sales goals in 1955, as referred to in the engraving on the back. It is a Memovox manual wind alarm watch. Very collectible. More information may be found here: http://www.watchprosite.com/?page...

You might want to try Blake at Scotch Watch. Google the name. He has a lot of parts for hard-to-find calibers.

However, if he has them it will cost you, as he is likely to be the only source.

LeCoultre parts are generally difficult to find.

Good luck,
gatorcpa

Certainly looks the part to me. Here is a completed auction for a similar watch:

http://www.sothebys.com/en/auctions/eca ... t.125.html

Hopefully Zaf will give his opinion.
gatorcpa

Found this advertisement online today:
You have a Nautilus "I" model in steel. Next task is to find the original bracelet.
Good luck with that!
gatorcpa

I have a black dialed Powermatic from about the same time period. The outline is gold, not red. http://i7.photobucket.com/albums/y266/gatorcpa/Watch%20Photos/LeCoultre%20Powermatic/815D0A2B-8505-40DE-8BBD-F5DCA95CE48A_zpswdoj4o7r.jpg~original The logo on the first watch looks correct. The "Swiss" is...