SEIKO Silver Wave Z - Battery Replaced Black Dial - Beautiful Condition - 7546-6050 - Made in 1978 This is a vintage quartz watch from Seiko, an antique wristwatch. This model, within the Silver Wave series, is a rare Z model, sold for only about a year starting in 1978. It has been stored in a drawer for many years. There is no box or strap. As it is an old item, there are fine scratches. Please understand this before purchasing. SEIKO Antique Watch Quartz Old Quartz Diver's Watch