19GS
![19GS](https://watchprofessoracademy.com/wp-content/uploads/2023/08/IMG_6076.jpg)
The Grand Seiko 19GS was the world’s first Hi-Beat movement for women’s watches, running at 36,000 bph. There were 6 models including a VFA variant caliber 1984A which was accurate to ±3 spd (less accurate compared to the men’s V.F.A. standard of ± 2 spd).
Photo : TheGrandSeikoGuy