1981 Seiko SQ men's vintage watches X2. Model references 7123-8290 and 7123-8430 - YouTube
SOLD 1981 Seiko SQ 7123-8290 - Birth Year Watches
Seiko | Accessories | Seiko Sq Two Tone Day Date Bracelet Watch | Poshmark
SEIKO - Men's watch "SQ 100". Steel case and bracelet, white guilloche dial with baton hour markers and indicator in a window at three o'clock of the day and date. Quartz movement.
Seiko 7548-7009 SQ Diver with original Seiko Z199 bracelet | WatchCharts
Seiko Quartz Wrist Watch – Ticktock Guru
FS: Seiko 5Y23 7000 on Seiko SQ Bracelet - white arabic numbers on black dial | WatchUSeek Watch Forums