Vacheron Constantin

Hi All, Been doing some interesting comparisons between various watches I have,to see what power reserve they have when fully wound.I have a manual Cal 1003 - ultra thin movement.Whilst I accept because of the thinness of the movement,you should not expec... 

I don't have my 1003 watches any more to test the power reserve out for you, but it definitely should be over thirty hours (and I recall that when I wore mine they would operate for well more than 24 hours). I'm guessing that at the least you'll need a ne... 

hi i have tested the power reserve on full wind of the cal 1003 (circa 90s classique}on three occasions over the past two months and have averaged thirty six hours---still hoping to reach forty hours hopes this helps best regards henry

Thanks Bill and Henry for your input,it is begining to confirm my worst fears - so now it looks like a mainspring issue - the question will be what this will cost - I have found an independent watch repairer whom will do the service,but what cost the main... 

Hi Alex! I have four 1003 movements and they all run between 36-40 Hours. There is a shop in the States selling parts for VC 1003 movement and there price for the mainspring is 65$ plus shipping. Do a Google research on Cas-Ker and you will find it easily...  

Hi Marios, Thanks for the info.on the mainspring - this is most odd,as when you log onto VC main site,the official power reserve on this caliber is shown as 31 hrs - the best i got was 26.5 - so its about 85% of its power reserve when fully wound - my wat... 

Hi Alex! It is true that the site mention the power reserve on 31 Hours. I guess this is happening because the 1003 movement is considered to be chronometer quality. So for 31 hours it is keeping excellent time, without being wound. But it should run more...  

Well Marios,between this watch site and another and your informative posts,it has put my mind at ease on many subjects - of course,you can buy a watch who's dial is in such original,mint condition,people only believe its a re-dial/refinish,no matter what ...