Rocking a quartz dive watch today… Grand Seiko SBGX117. Accuracy is supposed to be +/- 10 seconds PER YEAR. Grand Seiko don't mess around.… | Instagram
No Longer Made: Grand Seiko Quartz Diver SBGX115 & SBGX117 | aBlogtoWatch
Truth, beauty and quartz | ultracrepidarian
No Longer Made: Grand Seiko Quartz Diver SBGX115 & SBGX117 | aBlogtoWatch
Grand Seiko Quartz Diver SBGX117, SBGX115 Watch Review | aBlogtoWatch