GRAND SEIKO SBGA001 SPRING DRIVE MEN'S WRISTWATCH ROUND FACE JAPAN MADE SS BELT
SBGA001 9R65-001. From the power reserve gear train to the mainspring barrel, the design represents the Hotaka mountain range and the Jonen mountains. ⬛︎ [Grand Seiko] Spring Drive 9R65. Grand Seiko Spring Drive 9R65.