![Grand Seiko Introduces Sporty Evolution 9 Spring Drive Collection at Watches & Wonders | WatchTime - USA's No.1 Watch Magazine Grand Seiko Introduces Sporty Evolution 9 Spring Drive Collection at Watches & Wonders | WatchTime - USA's No.1 Watch Magazine](https://www.watchtime.com/wp-content/uploads/2022/03/SLGA015_3-1024x702.jpg)
Grand Seiko Introduces Sporty Evolution 9 Spring Drive Collection at Watches & Wonders | WatchTime - USA's No.1 Watch Magazine
The New Grand Seiko Calibre 9RA5 Spring Drive 5 Days | Grand Seiko introduces a new generation Spring Drive calibre that is slimmer, even more precise and has a greater power reserve.
![Introducing: The Grand Seiko 60th Anniversary Limited Edition Professional Diver's 600M SLGA001, With New Spring Drive Caliber 9RA5 - Hodinkee Introducing: The Grand Seiko 60th Anniversary Limited Edition Professional Diver's 600M SLGA001, With New Spring Drive Caliber 9RA5 - Hodinkee](https://hodinkee-production.s3.amazonaws.com/uploads/images/1583271278691-n2r9ibxtahn-23856f746d834783c908414a77c6407f/9RA5_b.jpg)
Introducing: The Grand Seiko 60th Anniversary Limited Edition Professional Diver's 600M SLGA001, With New Spring Drive Caliber 9RA5 - Hodinkee
![Slimmer, more precise and more powerful. A new Spring Drive movement marks a new beginning for Grand Seiko. | Grand Seiko Slimmer, more precise and more powerful. A new Spring Drive movement marks a new beginning for Grand Seiko. | Grand Seiko](https://www.grand-seiko.com/nl-en/-/media/Images/GlobalEn/GrandSeiko/Home/news/20200305-10/2020030510img07png.png)