Generally speaking, (apparently, this rule isn't 100% true) the third digit in Seiko's caliber naming system is supposed to denote the expected accuracy of a movement compared to other movements in the same family.

http://www.network54.com/Forum/message?forumid=78440&messageid=1048859921


It's possible that a 7S36 may go through a step during production making it slightly more accurate than a 7S26...hence the name change. I have no way of knowing if this is true or not, it's just a thought.

That was a great post on the subject. I have a feeling that I will be directing others to it for as along as I participate on the forum!!



This message has been edited by wpetew from IP address 4.185.138.27 on Feb 19, 2005 3:18 AM



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