Following Automatic Watches - Accuracy

    First Previous
  • Deleted user 20 January 2011 16:40:10
    I got a very nice automatic watch for Christmas, I love it to pieces and plan on never replacing it. The problem is that being an automatic watch it isn't 100% accurate all the time. I worked out that over a 24 hour period it gains maybe 8 seconds. Nothing much but it doesn't sit well with my OCD nature in checking it! The company that it was bought from have a brand new one ordered and waiting for me to swap, but a part of me is wondering if there is any point. Is about 8 seconds acceptable for a good quality Swiss made watch (as in do I run the risk of picking one up that is worse) or is about 8 seconds over 24 hours quite bad? Help would be appreciated, I feel bad enough having what is a very special present replaced. But I will feel even worse if I'm doing it for no reason!
  • Deleted user 20 January 2011 16:40:52
    OCD indeed working out it gains 8 seconds every 24 hours christ mowgli :p
  • Deleted user 20 January 2011 16:41:32
    Haha, I had a little notepad and everything... :D
  • billythekid 20 Jan 2011 16:42:26 12,357 posts
    Seen 2 hours ago
    Registered 14 years ago
    What's an automatic watch? One of those kinetic things?
  • DaM 20 Jan 2011 16:43:45 17,384 posts
    Seen 2 hours ago
    Registered 18 years ago
    Mine is not great - sorry, haven't timed it to the s/24hr level, but it's probably more than that.

    But my f-in-laws cost 4000 and is much worse! An IWC watch? Nothing to do with whales..
  • mrpon 20 Jan 2011 16:44:51 35,465 posts
    Seen 15 minutes ago
    Registered 13 years ago
    Still can't get up on time though can you? ;)
  • gamingdave 20 Jan 2011 16:44:59 4,825 posts
    Seen 1 hour ago
    Registered 16 years ago
    8 seconds really isn't that bad, and I would rather any of my watches ran faster than slower. What make and model of watch is it?

    If its COSC certified, then 8 seconds would be outside of the required time keeping, and a replacement could be expected.

    Leaving the watche in different positions will effect its time keeping as well. So you should experiment at night time leaving it resting in a different way. Try on its back, on its face, and either crown up or down.
  • X201 20 Jan 2011 16:45:48 19,415 posts
    Seen 24 minutes ago
    Registered 14 years ago
    Harrison's watch was accurate to one-fifth of a second per day in the early 1700's

    8 seconds is a bit much in the 21st century
  • DaM 20 Jan 2011 16:49:42 17,384 posts
    Seen 2 hours ago
    Registered 18 years ago
    X201 wrote:
    Harrison's watch was accurate to one-fifth of a second per day in the early 1700's

    8 seconds is a bit much in the 21st century

    Yes, but he had to use it to figure out where he was in the middle of the unknown ocean, with sea monsters and shit.

    What's 8 seconds to Mowgli? It could probably be 8 minutes out and not do any harm.
  • Carlo 20 Jan 2011 16:51:00 20,609 posts
    Seen 3 hours ago
    Registered 14 years ago
    My Automatic receives a radio signal that keeps it accurate.

    Citizen Eco-drive WR200 for the win. I haven't nor will I ever need to do anything with it. I just put it on my wrist and that's it!

    (Although I do use it's functions including the slide-rule bezel thing)
  • boo 20 Jan 2011 16:51:28 13,526 posts
    Seen 2 days ago
    Registered 16 years ago
    By 'automatic', do you mean one that checks in with some nuclear powered signal every now and again, or one that simply doesn't require a battery?

    And what are you checking the +/- 8 seconds against?
  • RyanDS 20 Jan 2011 16:51:56 12,882 posts
    Seen 5 hours ago
    Registered 11 years ago
    8 seconds means your watch changes by... 48 minutes a year.

    That's actually quite poor.

    What watch is it? I have aSeiko Kinetic and apart from daylight savings I've never needed to adjust it in 3 years.
  • billythekid 20 Jan 2011 16:52:25 12,357 posts
    Seen 2 hours ago
    Registered 14 years ago
    boo wrote:
    And what are you checking the +/- 8 seconds against?

    Yeah and has it been calibrated lately?
  • Deleted user 20 January 2011 16:53:18
    gamingdave wrote:
    8 seconds really isn't that bad, and I would rather any of my watches ran faster than slower. What make and model of watch is it?

    If its COSC certified, then 8 seconds would be outside of the required time keeping, and a replacement could be expected.

    Leaving the watche in different positions will effect its time keeping as well. So you should experiment at night time leaving it resting in a different way. Try on its back, on its face, and either crown up or down.
    Yeah I heard about this, had a wee play with leaving it on its side and on its face. Need to test it properly though.

    It's a Hamilton "Jazzmaster" watch.
  • billythekid 20 Jan 2011 16:54:02 12,357 posts
    Seen 2 hours ago
    Registered 14 years ago
    Jizzmaster lol
  • X201 20 Jan 2011 16:54:38 19,415 posts
    Seen 24 minutes ago
    Registered 14 years ago
    mowgli wrote:

    "Jazzmaster"

    Waits for mowgli to regret posting that info :)

    Edit: see, before I could even post this :D
  • Deleted user 20 January 2011 16:55:31
    Haha, I know! Love the watch, not so sure about the name.
  • Carlo 20 Jan 2011 16:55:42 20,609 posts
    Seen 3 hours ago
    Registered 14 years ago
    700+ that can't keep time?! Who the hell buys these things?
  • gamingdave 20 Jan 2011 16:55:49 4,825 posts
    Seen 1 hour ago
    Registered 16 years ago
    Automatic meens if not left for a period of time (normally 36hrs+) it does not need winding.

    A rotor attached to the movement winds the mainspring as it moves. Not to be confused with a kinetic movement which is similar but where the rotor moves to charge a capacitor, which in turn powers the watch.

    Automatics are mechanical, kinetics are quartz.
  • TenMinJoe 20 Jan 2011 16:56:43 79 posts
    Seen 3 hours ago
    Registered 16 years ago
    A "proper" automatic is a self-winding analogue watch. I think the "Kinetic" ones are self-CHARGING quartz-regulated electronic watches, which is slightly different.

    I used to have an automatic - it was okay for a few years - not super accurate, but not as inaccurate as Mowgli's. Then eventually it went a bit mad, and it got to the point where it was only any use for an estimate of the time plus or minus five minutes. It couldn't even settle on whether it was fast or slow. Then I bought a quartz.

    edit - damn you gamingdave and your slightly faster watch geekery!
  • Deleted user 20 January 2011 16:56:46
    gamingdave wrote:

    Leaving the watche in different positions will effect its time keeping as well. So you should experiment at night time leaving it resting in a different way. Try on its back, on its face, and either crown up or down.

    Fuck me when was having a watch so much work!
  • gamingdave 20 Jan 2011 17:01:13 4,825 posts
    Seen 1 hour ago
    Registered 16 years ago
    Well it houses a ETA 2824-2 which is a staple workhorse found in a LOT of watches. I'm assuming it isnt chronometer grade so as it stands +8 seconds is fine. If it is consistant in this regard, you could have it regulated by any competant watchmaker, and probably get it closer to 0.
  • boo 20 Jan 2011 17:03:22 13,526 posts
    Seen 2 days ago
    Registered 16 years ago
    Or you could by a digital watch from Argos for 3.99 which is probably as, if not more, accurate.
  • Deleted user 20 January 2011 17:04:58
    Someone mentioned getting it regulated, but as it is less than a month old I'm not too keen on someone opening the back of it just yet. Hmmm, new one just sitting there waiting for me to pick it up but I'll be very pissed it ends up being more (+/-). Wonder how they'll feel about me asking if I can sit with my cheap digital watch timing the thing for 24 hours... lol
  • Load_2.0 20 Jan 2011 17:05:12 29,927 posts
    Seen 52 minutes ago
    Registered 16 years ago
    Your watch has a Valjoux 7750 engine, it is used in a large number of swiss watches.

    8 seconds is slightly fast for a new auto with that engine, I suggest taking it off when wanking.
  • Pac-man-ate-my-wife 20 Jan 2011 17:06:36 7,042 posts
    Seen 20 hours ago
    Registered 16 years ago
    Just get one of these for actually telling the time, then keep your bling one for impressing a certain type of lady who is into expensive watches: http://boingboing.net/2010/12/03/casio-f91w-wrist-wat.html
  • Load_2.0 20 Jan 2011 17:07:35 29,927 posts
    Seen 52 minutes ago
    Registered 16 years ago
    gamingdave wrote:
    Well it houses a ETA 2824-2

    LIES!
  • RyanDS 20 Jan 2011 17:07:39 12,882 posts
    Seen 5 hours ago
    Registered 11 years ago
    Hmm... this has got me intrigued. I'll check the accuracy of my watch tomight. Whats a good base to check it on? he speaking clock?
  • Load_2.0 20 Jan 2011 17:10:39 29,927 posts
    Seen 52 minutes ago
    Registered 16 years ago
    atomic clock
  • First Previous
Log in or register to reply

Sometimes posts may contain links to online retail stores. If you click on one and make a purchase we may receive a small commission. For more information, go here.