Grand Seiko 19GS complete guide

The Grand Seiko 19GS family originates from the Seiko 1944 caliber, the world’s first Hi-Beat movement for women’s watches, running at 36,000 bph.

Considering that there were no other Hi-Beat movements of such small dimensions at the time, it is likely that these were also the most accurate mechanical women’s wristwatches in the world.

The first appearance of a 19GS in an official Seiko catalog is in the first volume of 1969, with the reference R-100 (1964-0010) in stainless steel.

In total there are only three case designs and six different watches in the entire 19GS series.
Five of these house the 1964A movement, while one houses the Very Fine Adjusted caliber 1984A.

The three variants of the reference R-100 (1964-0010) adhere strictly to the principles of the Grammar of Design by Taro Tanaka.

The 19GS S-400 (1984-3000) was the only Grand Seiko V.F.A. watch made specifically for women, but it should be noted that it was accurate to +/-3 seconds per day, less compared to the men’s V.F.A. standard of +/-2 seconds per day.