Lemania 2310 / Venus 175 / Seagull ST-19 Movements

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ianblyth
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Lemania 2310 / Venus 175 / Seagull ST-19 Movements

Post by ianblyth »

Saw this link posted on another forum but worth posting here.

http://www.rwg.cc/topic/91877-lemania-2 ... ull-st-19/

Explains a bit of history about the movements.
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Re: Lemania 2310 / Venus 175 / Seagull ST-19 Movements

Post by Kip »

Interesting and informative read. Thanks Ian.
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grahamH
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Re: Lemania 2310 / Venus 175 / Seagull ST-19 Movements

Post by grahamH »

I now own a BWC ChronoTempo, manual wind. It has a Seagull ST-1908 movement. It is NOS. it runs a minute fast in a couple of days. On another topic,I have been advised to have it adjusted.
Reading your article,I get the impression I should get more accuracy than I'm getting...
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Re: Lemania 2310 / Venus 175 / Seagull ST-19 Movements

Post by ianblyth »

Accuracy for a mechanical watch is a minefield. The process you are talking about is called regulation if you want to search on it - try regulating watch.

If a watch is consistent with its loss or gain then regulating can bring it back again to a more reasonable loss/gain. COSC is often quoted. This is a Swiss process where watches are tested over 15 days in different positions and temperatures and it has to achieve in the range of -6 secs to +4 secs per day. Most people are happy with 10 to 20 secs a day for most watches.

As it is 30 secs per day the other option is to ignore it. Set it in the morning and wear it that day and by the end you will be 30 secs out. Use another watch the next day. When it comes to wearing that watch again then set it again in the morning. You could try setting it -15 secs so it will be +15 at the end of the day. If you are doing something that needs greater accuracy then you should consider a quartz/digital watch. For me 30 secs is nothing in a day. What I do is not that important to the world that I have to do it to the nearest second. :lol:

Also a sign of a watch needing a service is that its timekeeping goes.
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Re: Lemania 2310 / Venus 175 / Seagull ST-19 Movements

Post by grahamH »

Thanks for the advice. Not sure why I'm so hyper on this watch. Will just chill and enjoy it's looks.
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