Self winding watch.

[tobergill]

Good evening,
I have had a brand new Tissot self winding for a month now.
I keep a close check on the accuracy of the time keeping.
I find it loses ONE minute in a week
IS THIS GOOD OR BAD for a self winding watch.
Thank you in advance for any information.

Tobergill.

[RATTER15]

I would imagine one minute a week isnt very good!!

[Answerprancer]

..dah, MANACLES !

[craft1948]

I don't think my Longines loses that in a year...............

[RATTER15]

The accuracy of the watch depends on the movement and on the individual habits of the wearer and can therefore vary. A qualified TISSOT watchmaker can adjust the precision of a watch to within the TISSOT tolerances.

The majority of watches that do not have a chronometer certificate have average precision tolerances of between -10/+30 seconds per day. To earn the title of chronometer, the mechanical movement's average daily variation in rate must be between -4/+6 seconds per day.

http://support.tissot.ch/?mod_faq

[Answerprancer]

LOL Trim - I take it you saw my 'slave to the system' post.

[Milvus]

A minute a week difference isn't too bad. In general modern quartz driven watches are more accurate than mechanical watches including chronometer certified watches. So often cheaper is more accurate. 99.9 accuracy loses one and a half minutes a day. A good comparison chart is here http://www.chronocent...atches/accuracy.shtml

[tamborine]

clocks in car/mobile/pc/tv/church/street/shops they're everywhere; why wear one, especially muggable watches ?

[scotman]

My 20 year old Seiko quartz gains about 1 sec per day. I would expect modern watches to do much better.

[Fitzer]

As per Ratter an average of less than 10 secs a day slow is within tolerance for most mechanical movements, most manufacturers will tend to be fast rather than slow so a little unusual there. However pretty well all manufacturers will adjust to within tolerance within the guarantee period and I would suggest that being on the outer limits of the 'slow' side would entitle you to have this done. That being said,no-one should buy a mechanical watch for accuracy over a quartz, there's just no competition, said the man with one quartz and twenty six mechanicals ;-)

[Old_Geezer]

I'm unsure the fact that it is self winding has much to do with it's ability to keep accurate time. I'd have thought a minute a week was disappointing, but nothing to really complain about. We've all been spoilt by quartz crystal watches.

[gingejbee]

..and if you want accuracy, reliability AND no battery to change- go for Citizen's Eco-Drive Radio-controlled range. A genuine "get it and forget it" watch .

[petal54]

I tend to avoid anything that's 'self' anything,as tends not to do what it says on the oven.I really want a self toilet pan!!!!!!!!