Hands-On: The Grand Seiko SLGA025G 'Atera Valley' – The Best New Dial I've Seen In A Long Time - Hodinkee,Grand Seiko has announced the SBGA501 Ginza limited edition model. The watch has a dial that will shift color between black, blue, and purple depending upon the viewing angle that is inspired,Introducing: The Grand Seiko 20th Anniversary Of Spring Drive (Live Pics & Pricing) - Hodinkee,Grand Seiko 'Tsuki Tenshin' Spring Drive 44GS SBGY009 Watch Review,Introducing: Ginza-Exclusive Grand Seiko 62GS Hi-Beat SBGH317