Most Accurate Movements?

Most Accurate Movements?

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Bob_Defly

Original Poster:

4,514 posts

243 months

Monday 25th November 2024
quotequote all
What's the most accurate movement for the price? I'm not sure if this could be boiled down into a stat like seconds per £ or something?

The reason I ask is that I recently had my Seiko 6R35 movement regulated, and it's so much more accurate than it was, it's a game changer. I can't believe I put up with it being 20+ seconds a day out, even though it's within spec. I was always adjusting the time, now it's once a week.

I was looking at some of the Christopher Ward range, and the COSC movement with its +6/-4secs p/day seems very good for the price (as they are usually more accurate than stated), I was wondering if there are any other brands with automatics that have a stated range around the 5secs p/day for an affordable price?

As much as I love Seiko, their accuracy ranges are off the wall until you get into much higher prices.

To be clear, I'm not looking for quartz.

Edited by Bob_Defly on Monday 25th November 19:47

mikey_b

2,261 posts

57 months

Monday 25th November 2024
quotequote all
If you want great accuracy, you need to go for quartz. Most mechanicals can be regulated to be pretty good - a couple of seconds a day or so - but they will all drift over time, especally if not serviced. Quartz doesn't tend to do that, though some are more accurate than others - I think the ETA Superquartz movement is good to a few seconds a year, whereas most are a few seconds a month at worst.

There's a Seiko which is solar powered and corrects itself based on GPS signals. How does 1 second in 100,000 years sound for accuracy?

OMITN

2,510 posts

104 months

Monday 25th November 2024
quotequote all
And if you want to stay mechanical/automatic then seiko’s Spring Drive movements (generally found on their Grand Seiko models) are highly accurate.

(And before anyone starts, no they aren’t quartz watches..!)

Super Sonic

8,771 posts

66 months

Monday 25th November 2024
quotequote all
OMITN said:
And if you want to stay mechanical/automatic then seiko’s Spring Drive movements (generally found on their Grand Seiko models) are highly accurate.

(And before anyone starts, no they aren’t quartz watches..!)
Seiko Spring Drive uses a quartz crystal oscillator as part of it's regulator, so is a quartz watch.
The fact that it is powered by a mainspring doesn't change that.

Bob_Defly

Original Poster:

4,514 posts

243 months

Monday 25th November 2024
quotequote all
mikey_b said:
If you want great accuracy, you need to go for quartz.
I know quartz is more accurate, but I'm obviously ignoring it for the sake of this post.

Bob_Defly

Original Poster:

4,514 posts

243 months

Monday 25th November 2024
quotequote all
OMITN said:
And if you want to stay mechanical/automatic then seiko’s Spring Drive movements (generally found on their Grand Seiko models) are highly accurate.

(And before anyone starts, no they aren’t quartz watches..!)
I agree that it's not quartz per se, but I'm looking at 100% mechanical.

The question is, if CW can offer +5/-5secs p.day for just under £1,000 , can anyone beat that?

Super Sonic

8,771 posts

66 months

Monday 25th November 2024
quotequote all
Bob_Defly said:
OMITN said:
And if you want to stay mechanical/automatic then seiko’s Spring Drive movements (generally found on their Grand Seiko models) are highly accurate.

(And before anyone starts, no they aren’t quartz watches..!)
I agree that it's not quartz per se, but I'm looking at 100% mechanical.

The question is, if CW can offer +5/-5secs p.day for just under £1,000 , can anyone beat that?
Seiko Spring Drive IS quartz.

Edited by Super Sonic on Monday 25th November 18:54

Jimjimhim

2,107 posts

12 months

Monday 25th November 2024
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paddy1970

1,082 posts

121 months

Monday 25th November 2024
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Contrôle Officiel Suisse des Chronomètres (COSC) is a Swiss institute that certifies watches meeting precise accuracy standards, specifically within -4 to +6 seconds per day. Below are COSC-certified automatic watches:

Christopher Ward: Christopher Ward provides models like the C60 Trident COSC 600, which features their in-house SH21 movement.

Tissot: The Tissot Le Locle Automatic COSC is a notable option, featuring a chronometer-certified ETA 2824-2 movement.

Certina: Certina's DS-8 collection includes models with COSC-certified movements.

Mido: Mido offers several COSC-certified models, such as the Multifort Chronometer 1.

Formex: The Formex Essence features a COSC-certified automatic movement.

If I had to choose one for the best value, I would recommend the Christopher Ward C60 Trident Pro COSC.


Bob_Defly

Original Poster:

4,514 posts

243 months

Monday 25th November 2024
quotequote all
Jimjimhim said:
Way to miss the point of the question.

Bob_Defly

Original Poster:

4,514 posts

243 months

Monday 25th November 2024
quotequote all
Super Sonic said:
Seiko Spring Drive IS quartz.

Edited by Super Sonic on Monday 25th November 18:54
It doesn't matter, it's not what I was asking.

Jimjimhim

2,107 posts

12 months

Monday 25th November 2024
quotequote all
Bob_Defly said:
Jimjimhim said:
Way to miss the point of the question.
Should I have added a winking face to help you out a bit?

MitchT

16,583 posts

221 months

Monday 25th November 2024
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paddy1970 said:
Is that watch transparent or does it just have a dial that looks like a hairy arm?

Super Sonic

8,771 posts

66 months

Monday 25th November 2024
quotequote all
Bob_Defly said:
It doesn't matter, it's not what I was asking.
You said you didn't want quartz. Another poster said SSD isn't quartz and you agreed. I was pointing out it is.

Bob_Defly

Original Poster:

4,514 posts

243 months

Monday 25th November 2024
quotequote all
paddy1970 said:
Contrôle Officiel Suisse des Chronomètres (COSC) is a Swiss institute that certifies watches meeting precise accuracy standards, specifically within -4 to +6 seconds per day. Below are COSC-certified automatic watches:

Christopher Ward: Christopher Ward provides models like the C60 Trident COSC 600, which features their in-house SH21 movement.

Tissot: The Tissot Le Locle Automatic COSC is a notable option, featuring a chronometer-certified ETA 2824-2 movement.

Certina: Certina's DS-8 collection includes models with COSC-certified movements.

Mido: Mido offers several COSC-certified models, such as the Multifort Chronometer 1.

Formex: The Formex Essence features a COSC-certified automatic movement.

If I had to choose one for the best value, I would recommend the Christopher Ward C60 Trident Pro COSC.

Interesting (and thanks for actually answering what I asked).

I had a look through all of these, and I think I agree, CW seems to be the best bang for the buck. The others are nice, but are either generally more expensive than CW, or the design looks a bit 'DW / mall watch' if you know what I mean. I think CW stands out a bit design-wise.

Smurfsarepeopletoo

918 posts

69 months

Monday 25th November 2024
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Citizen ECO-Drive Radio Controlled watches?

Bob_Defly

Original Poster:

4,514 posts

243 months

Monday 25th November 2024
quotequote all
Smurfsarepeopletoo said:
Citizen ECO-Drive Radio Controlled watches?
Isn't that just Quartz?

bazza.

766 posts

104 months

Monday 25th November 2024
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I believe Rolex used to advertise +2 -2 for 5 years which is very impressive

GravelBen

16,050 posts

242 months

Monday 25th November 2024
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Bob_Defly said:
Smurfsarepeopletoo said:
Citizen ECO-Drive Radio Controlled watches?
Isn't that just Quartz?
The movement is quartz yes - eco-drive means solar powered and the radio controlled ones receive regular corrections from GPS or atomic clock (nominally 1second/100,000 years accuracy).

So while they are very accurate (some versions claim +/- 1s or 5s per year even without radio corrections), they aren't what you were asking about!

Citizen do make some accurate mechanical movements too though, apparently the 0200 is -3/+5 seconds per day.

Edited by GravelBen on Monday 25th November 23:41

wyson

3,198 posts

116 months

Monday 25th November 2024
quotequote all
MitchT said:
Is that watch transparent or does it just have a dial that looks like a hairy arm?
biggrin