Seiko Advan Ref.6106-7570 Cal.6106C 40mm Stainless Automatic 1973 Men's Watch,SEIKO Advan 6106-7570 ヴィンテージ 自動巻,[WTS] ???? Vintage Seiko Advan ???? - 6106-7570 - Cut Glass - 25J Automatic Cal.6106A - 1970's JDM ???????? --- Check Video --- 245 USD or Best Offer | WatchCharts Marketplace,6106-7570] This July 1972 Seiko Advan kills it with that pie crust case! And just look at these case edges! Loving the bronze sunburst! Modded with a faceted Seiko mineral glass crystal.,Seiko Advan Ref.6106-7570 Cal.6106C 40mm Stainless Automatic 1973 Men's Watch | eBay