Grand Seiko Sport

The Grand Seiko Sport, reference SBGH291, is a dive watch with a 43.8 mm titanium case. The case measures 14.7 mm thick and 51 mm lug-to-lug; water resistance is rated to 200 metres. Approximately 55 hours of power reserve is provided by self-winding calibre 9S85, with 37 jewels. The watch has a date display; LumiBrite is applied to the hands and indices. The hour marker at twelve o’clock is triangular, and the hands have different shapes. A sapphire crystal has an anti-reflective coating on the inner surface. The titanium bracelet has an extension clasp with folding lock.