Tuesday, June 29, 2010
Grand Seiko Automatic Caliber 6146-8000: The first GS model equipped with high beats automatic movement and possible one of the best hi-beat movement ever produced by Seiko. Beating at 36,000 bph, it maintains superb accuracy and reliability despite its age. With 25 jewels, it was produced in 1970 by Suwa Seikosha. There are two variants - caliber 6145 with date only, while caliber 6146 with both date and day functions. A total of 36,000 pieces of this model was produced.