![The 20th anniversary of Spring Drive is marked with a new manual-winding thin dress series. | Grand Seiko The 20th anniversary of Spring Drive is marked with a new manual-winding thin dress series. | Grand Seiko](https://www.grand-seiko.com/us-en/-/media/Images/GlobalEn/GrandSeiko/Home/news/20190321-6/20190321-2-img01.jpg)
The 20th anniversary of Spring Drive is marked with a new manual-winding thin dress series. | Grand Seiko
![Grand Seiko - Celebrating 20 years of the Spring Drive calibre - Innovation and technology - WorldTempus Grand Seiko - Celebrating 20 years of the Spring Drive calibre - Innovation and technology - WorldTempus](http://static2.worldtempus.com/cache/article/grand-seiko/spring-drive/g/r/grand-seiko-spring-drive-cover_crop_1396x781.jpg)
Grand Seiko - Celebrating 20 years of the Spring Drive calibre - Innovation and technology - WorldTempus
SJX Watches on Twitter: "An unnecessarily detailed comparison of the two masterworks of the Micro Artist Studio, the #GrandSeiko Spring Drive 9R02 and the #SeikoCredor Eichii II 7R14: https://t.co/oUZeDEqqtF https://t.co/KMJIq4JDrO" / Twitter
![The 20th anniversary of Spring Drive is marked with a new manual-winding thin dress series. | Grand Seiko The 20th anniversary of Spring Drive is marked with a new manual-winding thin dress series. | Grand Seiko](https://www.grand-seiko.com/no-en/-/media/Images/GlobalEn/GrandSeiko/Home/news/20190321-6/20190321-2-img05.png)
The 20th anniversary of Spring Drive is marked with a new manual-winding thin dress series. | Grand Seiko
![Grand Seiko USA on Instagram: “Refining a Masterpiece - The new 9R02 caliber achieves a high duration of 3.5 days in a slim profile. Two mainsprings enclosed in… Grand Seiko USA on Instagram: “Refining a Masterpiece - The new 9R02 caliber achieves a high duration of 3.5 days in a slim profile. Two mainsprings enclosed in…](https://i.pinimg.com/736x/21/8c/6a/218c6a4fd37559b3a89f098299950735.jpg)