Seiko Quartz SQ Day & Date 7546-8360 circa 1978 for $279 for sale from a Trusted Seller on Chrono24
Sold at Auction: Gentlemans vintage SEIKO SQ 100 Quartz wristwatch finished in silver tone with stainless steel bracelet. Day/Date model with sweeping second hand. Working when tested. Excellent condition for age.
Seiko SQ-50 Quartz Metronome - Walmart.com
Vintage Seiko Quartz SQ 4803-8000, Cushion Case, Original Condition, Just Serviced, Circa 1976 | WatchUSeek Watch Forums