Longines automatic hydroconquest accuracy

Longines automatic hydroconquest accuracy

Author
Discussion

Craigybaby69

Original Poster:

486 posts

131 months

Wednesday 15th April 2015
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Afternoon, had my watch 5 or 6 weeks, very consistent, but consistently losing 10 secs a day...think the manual says -4/+10/day is normal, so should I expect better or accept it?
Cheers

PJ S

10,842 posts

227 months

Wednesday 15th April 2015
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If its running -10 s/day and the spec sheets says it should be running better than that, then you should have no problems getting them to regulate the movement so that it does.
You'll be without the watch for a couple of weeks or so, but at least it should be performing much better when receive it back.

On option, if not already accounted for, is to make sure the watch is wound fully each night, and the deviation noted when you take it off - say against www.time.is
Position the watch crown up, down, face up, down etc and then see what the deviation is the next morning.
With any luck, one or more of the positions will cause it to speed up, which means you could deal with the present deviation by positioning it a specific way to reduce/negate the overall deviation.

Craigybaby69

Original Poster:

486 posts

131 months

Wednesday 15th April 2015
quotequote all
Thanks for the advice, I'll give it a few more weeks and see if it gets better. I wear it permanently so I assume that is better than taking it off every night?
Cheers

PJ S

10,842 posts

227 months

Thursday 16th April 2015
quotequote all
With wearing it overnight, you could be lying in a position that causes the movement to run slow.
By removing it each night, after checking against the atomic clock time, and positioning it differently each night, then checking the time again in the morning, you'll soon see which position(s) cause the watch to lose more time, and which speed it up to make it deviate less overall.
Doing this, you'll be able to manage the deviation that occurs during the day.

Of course, you can still avail of having Longines' Service Centre regulate the movement, and re-pressure tested, such that it deviates less in each position.

The winding aspect is to reduce Isochronal errors, which is where the movement runs slightly quicker as the power reserve reduces – you'd only need to do that, if you thought you weren't moving enough during the day to have it fully wound, before taking it off.
An easy check is to take the watch off, leaving it face up, and noting the time displayed – if the watch stops at less than 36 hours later, then it'll need a bit of manual winding, otherwise it's fine if you don't.

tobinen

9,223 posts

145 months

Thursday 16th April 2015
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Mine gains about 2-3 minutes a week, though it's up for sale currently

Craigybaby69

Original Poster:

486 posts

131 months

Thursday 16th April 2015
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Cheers, I'll give it a bash

ecain63

10,588 posts

175 months

Friday 17th April 2015
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Craigybaby69 said:
Cheers, I'll give it a bash
smash

littleredrooster

5,537 posts

196 months

Saturday 18th April 2015
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Mine is spectacularly accurate when I put it crown-down overnight; within 10secs per week.

Kaj91

4,705 posts

121 months

Saturday 18th April 2015
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littleredrooster said:
Mine is spectacularly accurate when I put it crown-down overnight; within 10secs per week.
Is ten seconds per week considered spectacularly accurate? Mine is losing 1.5 seconds per week and I am disappointed.

Craigybaby69

Original Poster:

486 posts

131 months

Sunday 19th April 2015
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Crown down last night, 5 secs lost over 9 hours

Craigybaby69

Original Poster:

486 posts

131 months

Monday 20th April 2015
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Crown up, 8 secs lost

Craigybaby69

Original Poster:

486 posts

131 months

Tuesday 21st April 2015
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Face up 3 secs lost

littleredrooster

5,537 posts

196 months

Tuesday 21st April 2015
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Kaj91 said:
littleredrooster said:
Mine is spectacularly accurate when I put it crown-down overnight; within 10secs per week.
Is ten seconds per week considered spectacularly accurate? Mine is losing 1.5 seconds per week and I am disappointed.
I think your expectations are slightly too high. I have a quartz watch which loses more than that!

PJ S

10,842 posts

227 months

Tuesday 21st April 2015
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Craigybaby69 said:
Face up 3 secs lost
If you're losing 10 seconds a day on the wrist, and with -5, -8, and -3 so far, then unless face down and/or 12 up results in a massive +ve swing, I'd say it's already pretty clear that the movement isn't performing to spec.
Make the call to Longines CS and tell them of the situation – they'll advise on how long it'll take to regulate the watch and return it.

Craigybaby69

Original Poster:

486 posts

131 months

Tuesday 21st April 2015
quotequote all
Yeah, thanks, I was heading towards this conclusion myself...bit disappointing & takes the shine off a bit...never mind, worse things happen at sea

Craigybaby69

Original Poster:

486 posts

131 months

Tuesday 21st April 2015
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Just spoken to longines, they agree it's out of tolerance, they're sending me a prepaid envelope to send it to them...can't argue with that.

tobinen

9,223 posts

145 months

Tuesday 21st April 2015
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Pretty good service

Craigybaby69

Original Poster:

486 posts

131 months

Monday 27th April 2015
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Called today to see where my envelope is...told it can take a week but they'll check on the system....oh, they can't find me on the system! So typical these days...lucky it's not urgent.

Craigybaby69

Original Poster:

486 posts

131 months

Wednesday 3rd June 2015
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Watch received back today so they had it approx 4-5 weeks and I was on holiday last week and told them not to send it then even if it was ready, so they managed to follow that instruction. No new marks or scratches either so hopefully, if it's keeping better time I'll be able to report a favourable after sales service.

Craigybaby69

Original Poster:

486 posts

131 months

Thursday 4th June 2015
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Decent first 24hrs, 1 second fast...GNV