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
FS: Grand Seiko Diver SBGX117 w/Box, Papers, Warranty - Rolex Forums - Rolex Watch Forum
Grand Seiko Quartz Diver SBGX117, SBGX115 Watch Review | aBlogtoWatch
Grand Seiko Quartz Diver (SBGX117) Price Guide & Market Data | WatchCharts
Grand Seiko Quartz Diver SBGX117, SBGX115 Watch Review | aBlogtoWatch