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.
SOLD 1998 Seiko SQ100 watch 7N43-8001 - Birth Year Watches
Vtg Seiko Watch SQ Quartz Sports 100 Silver and Gold Tone Day - Etsy
Inherited Seiko SQ100 - How Old Is It? | WatchUSeek Watch Forums