Sold at Auction: A Vintage Seiko 5Y66 Quartz Chronograph Gents Watch. Black leather strap. Stainless steel case - 40mm. Black dial with three sub dials. In good condition and working order.
New]SEIKO SEIKO multi-calendar SS Black clockface Quartz watch mens SNT005P1 5Y66 k - BE FORWARD Store
SEIKO 5Y66-0AB0 Quartz Watch | WatchCharts
SEIKO - セイコー 腕時計美品 - 5Y66-0AB0 メンズの通販 by ブランディア|セイコーならラクマ