Seiko Sumo 50th Anniversary Limited Edition SBDC027 Japanese Automatic 200m 45mm - The Sutor House
Two limited editions celebrate milestones in Seiko's chronograph history | Seiko Watch Corporation
A tribute to a watchmaking revolution. The 50th anniversary of the Quartz Astron is celebrated in a limited edition GPS Solar watch. | Seiko Watch Corporation
Seiko Quartz 50th Anniversary Models — Plus9Time
Grand Seiko Automatic Limited Edition SBGR097 50th Anniversary for $5,977 for sale from a Trusted Seller on Chrono24