Amazon.com: Grand Seiko mens watches Spring Drive 20th&Nissan GT-R 50th Anniversary Limited Edition SBGC229 : Clothing, Shoes & Jewelry
Seiko Prospex Chronograph Watch 50th Anniversary Limited SBEC005 Panda MINT | eBay
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