61xx-70xx-data; possible one of the best histories...

[Deleted]

of these calibres.

A long time ago a forum member on the old SCWF; Adriano; produced this invaluable document.
Sadly; his pics all disappeared from his picture host but someone(me) with a littl fore sight saved the whole article, pics included.

I had to go through the html and fix the pic links so it now works.

I take no credit for the work as it is entirely the property of Adriano.
www.members.shaw.ca/pmhorne/Misc/61xx-70xx-data.htm

Might be a good idea to archive this somewhere in the resources section of WS

[mikeyt]

Thanks, Peter.  I have the original, now without the photos.  I also have a copy linked (presumably your work) with the photos restored.  I wasn't aware until now that it was you who replaced them.

[HiBeat]

Fantastic ! I enjoyed this thoroughly.

I also find it very surprising that 7005's were only produced in 3 years. I am going to check all of mine (5 total) to see if any are outside the reported 1969-1971 range.

[HiBeat]

So I checked 3 of my 7005's in rotation, 1 from 1970, 1 from 1972 and the last from 1973.

[Deleted]

Jun 6, 2015 17:20:03 GMT -8 HiBeat said:

So I checked 3 of my 7005's in rotation, 1 from 1970, 1 from 1972 and the last from 1973.

Given the information that Adriano had at the time, I'm not surprised that the manufacturing period is a bit longer than stated. Adding your data would make the run between 4 and 5 years. Still not a long run by Seiko standards.

[bertnet]

Seiko Mouvements production date :
for the 7005A in this book it says that production begins in 1968 ? To 1976.

[Thomas]

Thanks "Ben"!    That is good stuff. 


- Thomas

[Deleted]

Jun 6, 2015 23:26:17 GMT -8 bertnet said:

Seiko Mouvements production date :
for the 7005A in this book it says that production begins in 1968 ? To 1976.

Excellent stuff! This too should be archived in the resources section of the forum!