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Old 9 January 2020, 01:11 AM   #1
Bybybmw
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GS movements info?

Own both Tag Heuer and Rolex and now looking at Grand Seiko.
Is there some reference info detailing the differences, pros and cons, etc of the different GS movements (calibers)?

Thanks
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Old 9 January 2020, 01:39 AM   #2
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Spring Drive, nothing else matters (imo)
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Old 9 January 2020, 02:22 AM   #3
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Spring Drive, nothing else matters (imo)
Quartz, Hi-Beat, I dig all Grand Seiko
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Old 9 January 2020, 02:52 AM   #4
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Own both Tag Heuer and Rolex and now looking at Grand Seiko.

Is there some reference info detailing the differences, pros and cons, etc of the different GS movements (calibers)?



Thanks


You can read about the calibers on the GS website; there are also good videos out there on spring drive movement. This and the hibeat are what GS is known for, movement wise.


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Old 9 January 2020, 03:53 AM   #5
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I dig all Grand Seiko
Me too (as long as SD is present)
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Old 9 January 2020, 02:32 PM   #6
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Me too (as long as SD is present)
You donít have to tell me twice!
A69E3A42-4C91-4534-B179-7FA5A8F3CEA3.jpeg
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Old 9 January 2020, 02:38 PM   #7
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GS is also known for the 9F quartz movement, which is worth reading up on, too.

This is a good introduction: https://www.hodinkee.com/articles/se...ith-caliber-9f
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Old 9 January 2020, 02:46 PM   #8
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Quote:
Originally Posted by Bybybmw View Post
Own both Tag Heuer and Rolex and now looking at Grand Seiko.
Is there some reference info detailing the differences, pros and cons, etc of the different GS movements (calibers)?

Thanks
Quartz and mechanical. In my opinion spring drive is an expensive gimmick that does not achieve anything useful, AND you have to put up with a power reserve indicator.

There are plenty of options so you should be able to find one that sings to you.
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Old 9 January 2020, 02:56 PM   #9
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The GS website isn't the easiest to navigate, but toward the bottom of these linked pages, there are excellent matrices comparing their different movements:
https://www.grand-seiko.com/us-en/ab...nt/springdrive

https://www.grand-seiko.com/us-en/ab...echanical/9s66
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Old 9 January 2020, 03:57 PM   #10
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Quote:
Originally Posted by Bybybmw View Post
Own both Tag Heuer and Rolex and now looking at Grand Seiko.
Is there some reference info detailing the differences, pros and cons, etc of the different GS movements (calibers)?

Thanks
Here's how I like to logically organize Grand Seiko movements. I like to think of 4 different base movements with variations on top of them.. Hope it helps:
  • Automatic
  • Automatic Hi-Beat - usually 36,000 bpm
  • Spring Drive - mechanical movement with the accuracy of quartz
  • 9F Quartz - this is truly a watchmaker's quartz

Then, once you start with one of those base movements, you get additional permutations within each of these: some have GMT, some have Date, some have power reserve indicator on the front vs back of the case, some are manual wind only, some 9F Quartz are so finely tuned that they are +/-5 seconds a year instead of +/-10 seconds a year.

If you are going for your first Grand Seiko and want to decide based on movement, my recommendation would be a Spring Drive. Smooth sweeping seconds hand. +/- 15 seconds a month accuracy.

But on the other hand, I think it's just as viable to de-prioritize movement and prioritize something else. Many people pick their first GS based on case material (steel vs titanium), dial design, case design, etc. If budget is a large factor, picking a 9F Quartz gets you a watch under $3k with the same phenomenal dial and case finishing that Grand Seiko employs in it's $5k-7k automatic/spring drive/hi-beat watches.
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Old 9 January 2020, 08:55 PM   #11
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Could also add the Spring Drive with Torque Return (as seen on the Eichii Ii).


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Old 9 January 2020, 10:33 PM   #12
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Quote:
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You donít have to tell me twice!
Attachment 1100339
All in good fun, this section is often too quiet.

Quote:
Originally Posted by Seibei View Post
Quartz and mechanical. In my opinion spring drive is an expensive gimmick that does not achieve anything useful, AND you have to put up with a power reserve indicator.
On the contrary my dear fellow forum user. SD is the one that rules them all!
And love the PR indicator. Very useful feature to me.
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Old 9 January 2020, 10:42 PM   #13
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GS make s some seriously fine watches. The finish is extremely good and I like the spring drive personally because of the change of pace and accuracy. I have the SBGA 211, 231 and 407. All from Topper.
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Old 9 January 2020, 11:31 PM   #14
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On the contrary my dear fellow forum user. SD is the one that rules them all!
And love the PR indicator. Very useful feature to me.
I agree. I love Spring Drive and its reliable consistent accuracy. It has just as much soul as any mechanical movement in my opinion.

At first I wasn't the biggest fan of the PR indicator. I have since developed an appreciation of its usefulness and I'm glad I have it on my SBGA419.


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Old 9 January 2020, 11:35 PM   #15
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Now we are getting somewhere. Thanks to all for the links and info.

"Good stuff Maynard"!
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Old 10 January 2020, 04:35 AM   #16
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On the contrary my dear fellow forum user. SD is the one that rules them all!
And love the PR indicator. Very useful feature to me.
It is just my opinion, feel free to disagree. To me a Spring Drive is an inferior and over complicated way of making a quartz watch. Inferior in the sense that it is less accurate, due to number of moving parts it can not be as reliable as a regular quartz watch and it needs traditional movement service. A GS 9F quartz movement is sealed and should need no intervention for 50 years. It is inherently more reliable and accurate. (Yes, spring drive is a quartz watch, just more complicated than it has to be.)

Of course the Spring Drive has the sweeping hand motion and if this is of importance to you I can see the appeal. If not, then I really can't.
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Old 10 January 2020, 05:26 AM   #17
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The sweep is IT for me. Inside is nice as it reminds me how we humans also need an electrical current to make our heart do tik tok but the sweep...love, love it!!

Btw, your opinion is appreciated, we all 'tick' differently
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Old 10 January 2020, 07:35 AM   #18
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To me a Spring Drive is an inferior and over complicated way of making a quartz watch. Inferior in the sense that it is less accurate, due to number of moving parts it can not be as reliable as a regular quartz watch and it needs traditional movement service.

The same case can be made about a tourbillion vs. a Rolex 3135. A Grand Seiko/Seiko Spring Drive watch has a certain Rube Goldberg machine like quality about it. Therein lies its charm.


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Old 12 January 2020, 02:02 AM   #19
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Quote:
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The same case can be made about a tourbillion vs. a Rolex 3135. A Grand Seiko/Seiko Spring Drive watch has a certain Rube Goldberg machine like quality about it. Therein lies its charm.





Randy


I think this is whatís so fascinating about spring drive. The Rube Goldberg effect. Yea a quartz is more accurate, but damn, the years and expertise to get the spring drive to fruition has a certain charm to it. Was spring drive necessary and an overly complicated way to produce a thing that tells time? Of course. But the moment you see the sweep, itís all worth it.
my sbge249


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Old 12 January 2020, 02:50 AM   #20
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The sweep is so sweet...this watch gets so much attention when I travel...the lume at night in the darkened cabin is unmatched.
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Old 12 January 2020, 02:01 PM   #21
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I own a GS GMT SBGE001 made before the GS mono brand was launched. I love the sweep too but I also appreciate that the spring drive technology generates power mechanically and it is not dependent on a battery. So unlike conventional quartz mechanisms a GS spring drive watch is not at risk of battery leakage damage.
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Old 13 January 2020, 02:18 AM   #22
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Great posts, all of them. Thanks.
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Old 13 January 2020, 05:20 PM   #23
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The same case can be made about a tourbillion vs. a Rolex 3135. A Grand Seiko/Seiko Spring Drive watch has a certain Rube Goldberg machine like quality about it. Therein lies its charm.


Randy
Fair enough. It is up to the individual, I will always take a Rolex 3135 rather than a tourbillion. I can see the appeal of a tourbillion and I enjoy examining something like that. Would I own it though? No thanks.
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Old 13 January 2020, 05:57 PM   #24
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I am with this guy :
https://www.youtube.com/watch?v=Hh6J8wjgeQo
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Old 14 January 2020, 04:57 AM   #25
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I'm not. "35 to 50 years without a service"...
Yea right...
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Old 14 January 2020, 05:15 AM   #26
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My JLC with a traditional escapement is now 15 years old. Runs well within COSC and has never been serviced. Believe what you want but 30 years is possible with SD.
50 years, agree that's pushing it.
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Old 14 January 2020, 12:54 PM   #27
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My JLC with a traditional escapement is now 15 years old. Runs well within COSC and has never been serviced. Believe what you want but 30 years is possible with SD.
50 years, agree that's pushing it.
Sounds like he got it mixed up with the 9F movement which is in fact good for 50 years.
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Old 14 January 2020, 01:47 PM   #28
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Why not visit a GS boutique.

They have most of the information you want.
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