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 Seiko Quartz Vintage Day & Date | eBay
Seiko Quartz SQ 8C23-6010 A4 Day Date Vintage Old Stock 1980`s with Ori Case - Seiko watch - | Fash Brands
Seiko Quartz SQ Day & Date 7546-8360 circa 1978 for $280 for sale from a Trusted Seller on Chrono24
Sold at Auction: Vintage Seiko Quartz SQ 100 with Day and Date Wristwatch