There is a nice article on Worn And Wound Mar 13, 2015 5:33:58 GMT -8 lordflagpolecrabtree likes this Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by sdoocms on Mar 13, 2015 5:33:58 GMT -8 There was a thread on this board a while back on the SilverWave line. This article also speaks to those watches.wornandwound.com/2015/03/13/affordable-vintage-seiko-silverwave-ref-6601-7990/