Vtg Seiko Watch SQ Quartz Sports 100 Silver and Gold Tone Day - Etsy
VINTAGE SPORT CLASSIC JAPAN ST.STEEL MEN'S QUARTZ WATCH "SEIKO" SQ 100/7N42-T010 | eBay
1989 Seiko SQ100 Men's vintage watch on the original bracelet. Model reference 5Y23-8A50 - YouTube
Seiko SQ 100 - Etsy
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.