Disappointed with Overseas Dual-Time accuracy

I recently purchased a brand-new Overseas Dual-Time (47450/B01A-9227).  I love the style but am disappointed with the accuracy - the timepiece gains 6 seconds every 24 hours.

Could somebody tell me whether my expectations for timekeeping are too high?  I contacted the VC North America concierge, who told me that the manufacturer's tolerance for this model is +/- 5 seconds per 24 hours.  I returned the timepiece to the retailer, who then sent it to the VC facility in Austin, TX.  At the facility they "demagnetized" the watch and then sent it back to me -- but it is still consistently at +6 seconds.

I am new to high-end watches and maybe I should be focused more on appreciating the aesthetics of this timepiece rather than on its function.  But at this point I just have a bad taste in my mouth, and the accuracy issue is keeping me from enjoying my new purchase. 

Any guidance from more experienced VC owners would be appreciated.
that is still within COSC standards so not sure its something to be
09/19/2011 - 18:12
worried about Just enjoy your beautiful watch
I would be quite happy with the timekeeping....
09/19/2011 - 18:31
The rate is consistant and a little bit fast, just as a Vacheron Constantin should be. I would adjust it one a month to get it back with your reference time when resetting the date on months less than 31 days. It is a great looking watch and I would expect it to perform well for your for many years. Bill
Re: I would be quite happy with the timekeeping....
09/20/2011 - 04:55

I've never owned a VC watch but with all my other automatics, there can be a "breaking in" time for the movement of a few months. By then, most of mine were running within 3 secs/day. Hope this helps and enjoy your beautiful timepiece!

Re: Disappointed with Overseas Dual-Time accuracy
09/20/2011 - 08:18
Hi and Welcome to the Lounge, I have the same model and it is a tad on the fast side as you mention.  Apart from that, the watch is very reliable and I have not had a mechanical issue at all over the past five years. The bracelet clasp however, requires a redesign.  The buttons are prone to popping off - It has happened to mine twice already, requiring a new clasp assembly... Otherwise, I love my Overseas. Best regards JAMES
Re: Disappointed with Overseas Dual-Time accuracy
09/22/2011 - 21:19
Thanks to everyone for the very reassuring comments. As a follow-up, I will add that the data I reported (+6 sec over 24 hrs) were based on several off-the-wrist tests with the timepiece running on power reserve.  (I don't have a winder.)  After posting I conducted a 12-hour test with the watch on my wrist, and the timekeeping was spot on with absolutely zero variance from true time! If anybody has a mechanical explanation for why the watch would be more accurate on the wrist than on power reserve I would love to hear it, just for my own education. Meanwhile, I will post back in a few months after the mechanism has had a chance to "break in" to see if the watch still runs fast on power reserve.
thats fantastic! I think this results from the fact that on the wrist
09/23/2011 - 11:24
the watch finds itself in different positions averaging out the diffrent + or - variances
A lot of watches run differently on the wrist than at rest.
09/24/2011 - 07:52
Most (but not all) of them run faster on the wrist. That makes me feel that it is not necessarily an averaging effect, but that moving around actually tends to accelerate the watch's beat a bit. I have done some experiments, and to me it seems that when changing positions the watch may speed up quite considerably ( maybe as much as 5%) but for only a very brief time before returning to normal, with the net result being a slight increase in speed. Different watches react to being worn differently. My watchmaker once told me that he expected up to 20 seconds per day difference for 18,000 beats per hour movements, 10 - 15 seconds for 19,800 bph, and less for faster beat movements. I have found those tolerances to be generous: I have a lot of 19,800 bph IWCs and Rolexes, and have found that their rate usually changes by no more than about 6 seconds per day (which shows up as 3 seconds per day because I only wear tham about 12 hours per day) when being worn. A 12 seconds per day difference is perhaps more than would be expected in the Overseas' 28,800 bph movement, but it may be a characteristic of the movement.
Re: Re: Disappointed with Overseas Dual-Time accuracy
09/25/2011 - 23:06
Here a quick explanation in laymans terms why a watch runs faster on Power Reserve: (as i only know the fundamental bascs) When a automatic watch is worn the mainspring is basicaly constantly full wound and at maximum power. so the impulses to the balance wheel will be of consistent power. when a the mainspring winds down it has less and less power at the end and the impulses to the balance wheel will be weaker. which causes the balance wheel to make smaller swings. as it travels less the timing impulses the balance wheel gives are shorter eg. accelerating the timekeeping of the watch. a few hints on how to "properly" measure the timekeeping of your watch. Use a consistant timebase, like a real atom clock ;p, radio controlled quartz, high end thermo compensated quarz or online watch app like time.gov. (use the same timebase for your tests, dont switch to different ones) 1. set your watch to the timebase. if the watch runs fast set it like 1 minute slow to the time base, so it will catch up with actual time and vice versa. 2. write down the difference of your watch has to your timebase 3. wear your watch like you normaly do. for example if you take it off during sleep and wear it the rest of the day, do exactly that. you want to check the time keepig to your wearig habits. 4. the next day write down the time keeping difference of your watch to your timebase.  always check at the same time (doesnt have to be to the minute exact :), like if you set the time at 8 in the evening check it every evening at 8. 5. do this every day for a week or two. 6. after one week (or two) passed, add up the differences each day and take the average. and you will have the accuracy of the watch that matters. hope this helps