Grand Seiko Assembly and Adjustment Technical Expert, Tsutomu Ito | Toki-no-Waza The Artisan of Time|SEIKO WATCH CORPORATION
Vol.6 The creation of 9S85, the next generation of high-beat calibers.: A new team with new solutions | The 9F and 9S calibers in nine chapters | Grand Seiko
9s85 seiko,stormrage.com
What's really new with these Grand Seiko Hi-Beat Divers?