Grand Seiko Springdrive SBGA003
# Movement: 9R65 (Power reserve 72Hrs.)
# Accuracy: +15/-15 sec/month
Grand Seiko Automatic GMT SBGM003
# Movement: 9S56 (Power reserve 50Hrs.)
# Accuracy: +5/-3 sec/day
COSC: -4/+6
http://en.wikipedia.org/wiki/COSC
http://www.timeway.ru/articles/s_toc...nometrov_cosc/
http://en.wikipedia.org/wiki/Rolex
Например;
Breitling Aeromarine Avenger Seawolf
Breitling 17
-4/+6
