Deleted
Deleted Member
Posts: 0
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Post by Deleted on Sept 7, 2017 11:19:37 GMT -8
7s26A - 1996 thru 2006 7s26B - 2006 thru 2012 7s26C - 2012 thru current Basically they are one calibre with updates(note, I did not say improvements ) I suppose you could argue that they are three different calibres... 6r15=7s26D? 4r36=7s26D? 7s26D=4r16B 6r15=7s25D 4r36=6r16C Although I know there will be those who argue this.
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Mr.Jones
Needs a Life!
Hamburg, Germany
Posts: 4,679
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Post by Mr.Jones on Sept 7, 2017 12:04:15 GMT -8
4R15 and 6R15 use the SPRON510 Mainspring. 4R36 does not. But yeah, they are all very similar. 6R15 isn't even high - beat like it's 6R cousins
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HiBeat
Global Moderator
SEIKO Iko Iko GDTRWS
Posts: 8,685
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Post by HiBeat on Sept 7, 2017 12:11:17 GMT -8
7s26A - 1996 thru 2006 7s26B - 2006 thru 2012 7s26C - 2012 thru current Basically they are one calibre with updates(note, I did not say improvements ) I suppose you could argue that they are three different calibres... 6r15=7s26D? 4r36=7s26D? I would agree that 7S26/7S36 models such as SKX series would be replaced with new models using today's 4R36.
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pip
WS Benefactor
Berkshire, UK
Posts: 6,176
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Post by pip on Sept 7, 2017 14:48:25 GMT -8
Are those three calibers, or one caliber with updates? 7s26A - 1996 thru 2006 7s26B - 2006 thru 2012 7s26C - 2012 thru current Basically they are one calibre with updates(note, I did not say improvements ) I suppose you could argue that they are three different calibres... So does that mean you can have two 7s26A serial starting 66 that are a decade apart in age? Was there a model that spanned that whole time? Just out of interest you understand.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Sept 7, 2017 15:53:06 GMT -8
7s26A - 1996 thru 2006 7s26B - 2006 thru 2012 7s26C - 2012 thru current Basically they are one calibre with updates(note, I did not say improvements ) I suppose you could argue that they are three different calibres... So does that mean you can have two 7s26A serial starting 66 that are a decade apart in age? Was there a model that spanned that whole time? Just out of interest you understand. As it turns out, you could have all three revisions with serial numbers beginning with 66xxxx. The only way to tell which is which is the stampings on the rotor. I don't know if Seiko actually did overlap serial numbers but the system is set to do just that. There is no single revision that spanned from 1996 until today. Traditionally, Seiko only ran a calibre for 10 years then brought out something new. The 7s26 was so successful that they revised it and kept it going. An interesting thing about the 7s, 6r and 4r movements is that in the latest revision, Seiko rationalized them so that they could reduce inventory. That means that well over 90% of all these calibres are exactly the same parts. Most of the differences are in mainspring and balance spring materials and hand winding vs auto, along with hacking. But the basics are all 7s26.
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sdoocms
Is a Permanent Fixture
Carl
Posts: 5,296
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Post by sdoocms on Sept 7, 2017 19:18:20 GMT -8
I own 6 and I'm not planning on getting rich!
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gibsg
Timekeeper
Posts: 110
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Post by gibsg on Sept 8, 2017 22:43:09 GMT -8
SKX007 ? I don' t think it is discontinued, the SKX171 is discontinued.
I love mine , with SKX007 bezel and aluminium engraved insert.
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ausimax
Timekeeper
Kogan, Qld, Australia
Posts: 937
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Post by ausimax on Sept 11, 2017 5:30:45 GMT -8
I own 6 and I'm not planning on getting rich! I thought I was paying over the odds when I paid $72 for one that needed a new crystal. This one just sold for $255.
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