The 4th GS in my mini-collection
SBGH 001- the latest 36,000 vph calibre which debuted in 2009/2010
One of only 2 modern serial production 36,000 vph calibres, the other being the Zenith El Primero which was introduced in 1969
Supremely accurate with a perfectly heat-blued second hand..second hand is almost as smooth as a Spring Drive.
GS standard for Hi Beat is -3 to +5 secs/day....compare that to the COSC specs.
In actual daily use, the rate of my SBGH001 is +1 sec/day.
If you had read Hattori's interview in the latest QP, he said that Grand Seiko is the best effort from Seiko and to him, their Hi-Beat 36,000 vph is the best movement of Grand Seiko.

Close-up shot borrowed to show the beautiful heat-blued second hand
