Unknown old VC model of my grand grandfather

This beautiful piece of art was owned by my grand grandfather. I couldn't find many information about it, maybe someone could help me? Here are some pictures. Thank you

Unknown old VC model of my grand grandfatherUnknown old VC model of my grand grandfatherUnknown old VC model of my grand grandfather

Hi and bienvenue, you watch is a ref 6506 fron the 60s with the
06/11/2011 - 16:25

extra flat caliber 1003 which was then and still now the world's flatest manual wind movement at 1.64mm thick.

Re: Hi and bienvenue, you watch is a ref 6506 fron the 60s with the
06/11/2011 - 17:37

Is it possible to have the exact production date?

can you please give me the movement number?
06/11/2011 - 19:39
Re: can you please give me the movement number?
06/12/2011 - 00:34

Where can I find it?

on the movement its self, your photo is too blury to make
06/12/2011 - 13:23

out the inscriptions

World'd Thinnest watch is not by VC or AP.....
06/12/2011 - 02:11

Hello Alex,

Sorry to break the pipe dream however the world's thinnest dress watch (mechanical) was made by Lasalle and was 1.1mm thick.

The 1003 (VC ref) is like AP I own with the 2003 movement.  The VC reference K1001 and K1003 were jointly made by AP, VC and JLC.  They used a modifidy JLC movement.  the VC version was Geneve seal,  I have a VC 6405 with Geneve Seal K1001 movement and an AP Ultra thin with 2003 movement.

All great watches - but the thinnest award goes to Lasalle (which was bought out by Seiko).

Kind regards,


you really need to read my Slim is In article and you will see that
06/12/2011 - 13:31

the Lassale movement was even used by VC http://www.thehourlounge.com/index.php?module=Thread&action=view&threadid=46086&id=46086

here's an excerpt:

In the mid 70s Jean Lassale, a Swiss watchmaker, created 2 calibers which were at the time the slimmest of their kind, the manual wind cal 1200 with an amazing 1.2mm thickness obtained by suppression of the bridges and each wheel fixed to an axel driven in a micro ball bearing itself fitted to the plate and an automatic calibre 2000 only 2.08mm thick. The brand went out of business in the late 70s and was bought by Seiko but the technical rights to these calibres were bought by Nouvelle Lemania. In the early 90s Vacheron Constantin used these movements renaming them cal 1160 (manual) and cal 1170 (automatic) used in the references 34070 and 34170. The brand rapidly stopped production due to the functioning and servicing issues: the case back could not be opened without damaging the movement meaning that when a watch was sent for servicing the movement had to be changed! 

Bascically the Lassale movement didn't function properly, so yes it was thinner than cal 1003 but if it doesn't function and isn't used anymore so I still mantain that cal 1003 is still today the wold's thinnest manual wind movement.


Alex - I was wrong - YOU ARE RIGHT!
06/13/2011 - 02:55

Hello Alex,

I love this forum and I especially love you.

You are wonderful.

I am so proud of you for fighting this argument out..... Friends of mine laughed at me when I said my AP with 2003 movement (similar to VC 1003) was the world's thinnest.... I will now use your arguement to win.




06/12/2011 - 17:50

I'm sure you don't mean to be rude but taking an adversarial position is only advisable when you are certain of your facts (believe me, I know this).  Reading the superb educational materials that Alex and others have presented here and on other VC forums would be time well spent enlightened.  I also notice a 6405 for sale on fleabay by an Australian dealer...is that yours again?

... I'd also suggest that you look into who the folks are
06/12/2011 - 18:42

... you might be surprised.


Who is Archie42???
06/13/2011 - 03:00

Who is Archie42?

I am a VC lover and collector of beautiful things.....

I run the youtube chanel - ARCHIELIXURY - with over 650,000 views.

SEE WHO IS ARCHIE42/ARCHIELUXURY with the following Youtube clip:-


No idea..
06/14/2011 - 00:54

.. but what you don't know, I hazard a guess,  would make a library anbody would be proud of...

Brevet 356411?
06/12/2011 - 22:05

That is a very interesting inscription inside the case back, which I haven't seen before.  Brevet or Swiss patent 356411 is registered to casemaker Gabus Freres SA of Le Locle, which is confirmed by their responsbility mark of Anvil #141 on the case back.

The actual patent is listed under Horology and described as a shock absorbing mounting of the clockwork in the case.  I can't identify anything out of the ordinary except for that unusual scribed circle above and to the left of "BREVET".  Does this suggest some type of contact point?  AFAIK it doesn't line up with anything on the movement.

Alex, can you provide any details of this patent?  Cheers,