Looking for Movement Pic

of a cal. 457.  Any help would be appreciated Looking for Movement Pic
I looked all over!
02/01/2009 - 13:57

I refer to your post Vacheron Calibres of 1967. where you written fine about some calibres. I haven't found any pic of Cal. 457, because I have no one, and I can't find any when I look through my books. Probably somewhere in a Antiquorum catalogue but I got about 60 or more of those, or in one of my Sotheby's or Christie's, but you can't search in the catalogues on calibres(!) and you can't or couldn't before either at Antiquorum on the net. What I have is two cal. 435/3B which is a form movement from 40 and 50's, but there were also, rectangular, tonneau, square, rectangular cut, as these, oval and baguette shaped movements. The cal 457 : is a square movement. 19.90 mm x 19.90 mm, 9''', Height 3.30 mm, Breguet spiral, 18.800 vph,                 17 jewels, point index regulator, manual winding. The cal 435/3B : is a  'cut' rectangular movement. 17.80 mm x 24.50 mm, 11''', height 3.50 mm, Breguet spiral, 18.800 vph, 18 jewels, point index regulator, manual winding. 1946 1950 - same movement And then I have a round movement cal. 458 : diameter 20.60 mm, 9''', height 3.30, Breguet spiral, 18.800 vph, 17 jewels, point index regulator with 'micro-screw adjuster', what you call a'fine-regulator' or sometimes a 'snail regulator' at the index. So Dean, until I or some one else, runs into a cal. 457 you have to use your imagination, I think it will be a mix of those two. Remember that VC keep their calibers for many years. The 435 they had surely for 15 years! Most of my watches are earlier than these and VC had no cal. numbers at that time.  I done my best, and I'll be back as soon as I find anything, now those two are begging me to gout and get some food hej! Doc

Thanks Doc...
02/01/2009 - 21:04
Thanks for your efforts .  I recently picked up a copy of Vacheron's 1992 publication, The World of Vacheron Constantin, and have been pouring over the archival records that make up about half the book.  Great stuff!  I see they sometimes refer to the vintage calibers by ligne size and then numbers like 12/12 or 10/12, etc.  Any idea what these numbers signify? Also for your interest, I found a single picture on the internet for the tonneau caliber 446: Also, one picture of the elusive caliber 499, forerunner to the 1019: And two other tonneau calibers that I can't identify.  Can anyone? Mystery Movement A Mystery Movement B
I'll see if I can find one, regarding the "mystery" calibers VC didn't
02/01/2009 - 21:28
start systematically giving ref n° to its calibers until the late 30s and the ones with no specific n° were just referred to by their size. 
Vacheron caliber sizes
02/02/2009 - 03:01
Cool Alex.  While you're checking, can you shed light on the pre-reference number system?  As posted above, I've seen numbers like 12/12 or 10/12 following the ligne sizes for V&C movements and wonder what these mean? Here is another mystery caliber I need help to identify.  Appears to be a small one!
Pic no 1 & 3 is from a wellknown dealer,
02/01/2009 - 23:27
he has had them for sale for three years now... I tried to negotiate with him, but no, several years ago.No 4 is a Tonneau that I have owned myself, it's from 1936. I'm not sure who owns it now, you perhaps ? Looked like this.... Otherwise I know that IanS has taken at least two of the pics...  Pic no 2 I know nothing about. All for today hej! Doc
None are mine Doc (nt)
02/02/2009 - 03:12
here you go, scans of cal 457
02/02/2009 - 11:22
Thanks Alex, it's as close to mine cal. 458,
02/02/2009 - 14:33

that I expected. It's just square and cal. 458 above is round,

and has a more elegant index, but that's all.

Thanks again Alex, it's fantastic for me to "fill up" some more gas Doc

Sweet! Thanks +2
02/02/2009 - 17:50
Thanks Alex.  I'm also looking for a good picture of the 1005 "lozenge" movement, IF you happen to have one .
ask and you shall receive
02/02/2009 - 18:15
In which kind of watch was it used?
02/03/2009 - 13:54
I never saw such a movement!
you should read my SIHH 2009 article again :-) (nt)
02/03/2009 - 14:53
Once again Alex...
02/04/2009 - 05:03
you da man!  Thanks