Very early Seiko quartz 3003. 3863-5009. Comes with original box and tag. Fully serviced, new seals / crystal / battery. … | Seiko watches, Seiko, Bracelet watch
SEIKO 3003 quartz 3863-5009 from 1968' - YouTube
Seiko Quartz SQ 3003 Rare 0B43-8019 for $389 for sale from a Trusted Seller on Chrono24