Vintage JAPAN Seiko BUSINESS-A 27 Jewels Automatic Men's Watch,8346 8000 SGP,Seiko BUSINESS-A Diashock 27 jewels for $422 for sale from a Private Seller on Chrono24,セイコー ビジネスA 8346-8000 27石 自動巻 OH済 昭和42年製,VTG 1960's SEIKO BUSINESS-A DIASHOCK 27J Automatic 8346-9000 Mens Watch Japan | eBay,Seiko Business- A Diashock 27 jewels , Cal.8346-7010 day date case no.7600885 , made in Japan.