- Senior Member & WIS
- Posts: 6645
- Joined: June 11th 2011, 10:00pm
"...The SBGM235G is part of a flurry of Grand Seiko models that Seiko released to mark the 20th anniversary of its 9S self-winding movement which forms the base upon which mechanical Grand Seiko watches are built, from time-only to complication models. Limited edition watches released thus far to celebrate the 9S include three-hand date models in platinum, gold and steel featuring the cal. 9S85, a high beat /variant of the 9S beating at 5hz, and a ladies watch driven by a thinner version of the 9S, the cal. 9S25..."