Seiko Silverwave Z (JDM) [Ref: 7546-7040] Quartz BMBY: December 1978 Case: 38mm Bracelet: fits up to 7 inches Bezel: bi-directional Crown: screw-down Kanji / english day wheel Made in Japan (JDM) All,The Overdue Review! SEIKO 7546-7040 JDM Silverwave, Sept '78 - YouTube,1978 Seiko Quartz SilverWave Z 7546-7040,Rare Vintage Seiko Quartz Silverwave 7546-7040 | WatchCharts Marketplace,JA-2748| セイコー シルバーウェーブ Z 7546-7040 SS 多角形回転ベゼル ブルーダイヤル