Back in 1998, Grand Seiko introduced the Caliber 9S, which marked the start of an entirely new generation of mechanical watch movements for the brand. While Grand Seiko produces a wide assortment of different calibers including its various Spring Drive and 9F Quartz movements, it is the 9S series that sits at the heart of […]
The post New Release: Grand Seiko SBGJ275 And SBGM253 Caliber 9S 25th Anniversary Limited-Edition GMT Watches appeared first on aBlogtoWatch.
