reasons behind the use of saphire crystal or full case backs

In a recent thread about the Malte Power Reserve with Date model (click link below) a question rose as why ceratain

Vacheron Cosntantin watches had saphire crystal backs and other had closed case backs.

The reason of course has nothing to do with the quality of movement finish which is the same regardless as to whether the movement can be seen or not (I think that it is important to stress the point that the finish of the non visible and underdial components is done at the same level as the visible parts putting Vacheron Cosntantin on a level few brands can comete with...but that's for a seperate articel :-) )

The reasons are mostly aesthetic or functionnal:

1) The movement is considered small compared to the case size (ex patrimony Contemporaine manual or in a lesser event the Malte Power Reserve/Date).  This does not mean however that VC will stop using smaller movements in bigger cases because it is the case's aesthetics which will dictate the type of movement to use and for example to obtain a slim case (like in the Patrimony Contemporaine manual wind) only a slim movement can be used and a slim movement can only be small in diameter

2) The case form and the movement form differ (round mouvement in tonneau case)

3) Technical necessity: for example the soft iron inner case of the Overseas

Hope this helps

About Explorateurs ie :
06/05/2007 - 18:41

This is of course aesthetic.

They had the great idea to create a wind rose absolutely in accordance the Hommage aux Explorateurs, rather than a "standard" côtes de Genève and others high level finishes. I find this idea really great looking at the philosophy of this fabulous collection.

yes the whole idea of the Explorateurs is an invitation to travel
06/05/2007 - 21:37

which explains the wind rose engraving on the back.

Re: reasons behind the use of saphire crystal or full case backs
06/06/2007 - 11:56

Thanks Alex, for your effort in finding out from VC.

I'm pleasantly surprised to read that the non visible parts are also
06/06/2007 - 14:33

finished to the same degree as the visible parts. Any scans?

scan of underdial of cal 2450. You can see that the finish is
06/06/2007 - 17:22


WOW! That is some amazing finish, puts Vc on a whole different level
06/06/2007 - 18:37


I hope the exquisite finishing become standard on all future movements
06/07/2007 - 07:31

I hope the exquisite finishing become standard on all future movements.  I am pretty sure VC is headed in that direction and it would be nice if all VC movements will be of Geneve Seal quality (or higher).  The down-side would probably be higher prices but hopefully the price will be justified by the quality.

The goal in the medium term is to equip all VCs with inhouse
06/07/2007 - 11:59

calibers which all feature the Geneva Seal