1071 with steel rollers!

Surfing the net, I came across this picture of a calibre 1071 with steel rollers instead of ruby.  Is this an early version, Alex, or some Frankenstein?

1071 with steel rollers!

hmm strange never seen this, I'll check (nt)
01/18/2008 - 22:27


Re: 1071 with steel rollers!
01/19/2008 - 19:45

I'm not sure about the rollers. It may be the lighting, but they do look metallic. The movement number is mis-described I believe as 1701 instead of 1071 but that's probably just a typo. (second photo below)

Here is another watch from a different dealer, same movement with the rollers looking more reddish.

However both are described as having 29 jewels. A bit bizarre.

The rotors are 180 degrees apart.

after checking VC tells me that to the best of their knowledge the cal
01/21/2008 - 13:05

1071 came only on ruby bearings

I have a vague memory...
01/22/2008 - 01:54

of reading an article that mentioned steel rollers used in the earliest models, but soon replaced with ruby rollers due to unsatisfactory performance.  As with all these memories, finding the actual reference is the hard part

Father of 1071...
01/22/2008 - 20:28

is this Audemars calibre 2499.  Did VC use this version?

I don't know much on AP calibers but I think that the equivalent to
01/22/2008 - 21:24

cal 1071 was AP's 2071

AP 2499 = VC 1070?
01/23/2008 - 00:23

As you can see Alex, this Audemars cal. 2499 lacks the ruby rollers but is otherwise similar to the AP cal. 2071.  I wonder if the 2499 was an earlier version in the movement family and if VC also had a similar calibre? 

I've found references to a VC calibre 1070 but no details...can you provide any?

1070 is the same as 1071 but with sub seconds at 6. The 1071 has
01/23/2008 - 16:03

indirect central seconds.

I can't really find  the equivalent of the 1071 /1072 with JLC, maybe it was made exclusively only for VC and AP?

Re: 1070 is the same as 1071 but with sub seconds at 6. The 1071 has
01/23/2008 - 17:33

Perhaps, I do not think your comment to find the mistake. Because these three companies were in an amiable relation from about end in 1930's. Moreover,  AP was a big shareholder of JLC until JLC was purchased for Richemont.

not sure I quite understand but JLC did make certain movements
01/23/2008 - 18:10

exclusively for Audemars and Vacheron without using them in their own production (ie: the cal  VC 1120 and AP 2120).

Yes, the Ketterer family owned VC and JLC then sold VC to Sheik Yamani in the mid 80s. Audemars owned 40% of JLC until its sale to Richemont.

Maybe this is why many of the watches from VC and AP dating from the 60s-mid 90s looked the same!!

Re: not sure I quite understand but JLC did make certain movements
01/25/2008 - 19:20

Does AP's Cal.2003  believe product beginning as for you in 1946?

AP caliber 2003 = VC cal 1003 so I guess it was made after 1955 (nt)
01/26/2008 - 17:30