Vintage Seiko Chronos Quartz Rare Men's Watch 5H23-7D40 | WatchCharts Marketplace,SEIKO CHRONOS セイコー クロノス 5H23-7D40 クォーツ 腕時計,Seiko Chronos 5H23-7D40 Quartz Wristwatch Leather Black Band from Japan | eBay,Seiko Chronos [Ref: 5H23-7D40] Quartz BMBY: February 1981 Serial: 123926 Case: 35mm Bracelet: fits up to 7.5 inches All original Made in Japan (JDM) Kanji / english calendar Newly serviced,Seiko Watch Chronos 5H23-7D40 Analog Quartz From Japan Used | eBay