Seiko Impact 8T23-8020 Day Date Stainless Steel Metal Quartz Mens Watch Auth
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Seiko Impact 8T23-8020 Day Date Stainless Steel Metal Quartz Mens Watch Auth,FS - Rare SEIKO 8T23-8020. The 1st hand wound quartz from 1986. | Omega Watch Forums,1980's Seiko SBAD001 World First Hand Wound Quartz Watch, Caliber 8T23, 72 Hours Power Reserve #seiko #seikosbad003 #cal8t23 #seiko8t23 #sbad003 #sbad001,1986 Seiko ref. SBAD003 (8T23-8020) The world's first manual winding quartz movement was Seiko's Cal. 8T32, released by Seiko in the late 1980s. The wearer would be able to wind the crown,WTS] 1986 Seiko ref. 8T23-8020 Hand Wound Quartz : r/Watchexchange,