HOW TO USE
TO PRESERVE THE QUALITY OF YOUR WATCH
Names of the parts
HOW TO USE
48
49
68
70
72
74
78
80
82
83
After-sale service
Guarantee
Daily care
Water resistance
Magnetic resistance
Band
Trouble shooting
Specifications（Movement）
ＧRAND SEIKO STANDARD
Ｇ rand Seiko Standard
59
CONTENTS
46
47
Product features
This is an automatic mechanical watch mounted with a caliber 9S85 exclusively for
Grand Seiko.
・The balance wheel frequency is 36,000 beats per hour (10 beats a second), which is
higher than that of typical GRAND SEIKO mechanical watches: 28,800 beats per
hour (8 beats a second). As the balance wheel frequency increases, oscillations
become more stable and better accuracy can be obtained.
・The winding method is automatic, employing a structure so that it is sufficiently
wound by natural movement of the wrist while normally worn on the wrist. In
addition, a manual winding mechanism is equipped, which is convenient for winding
the mainspring when starting, etc.
⇒ For "HOW TO WIND THE MAINSPRING," refer to page 51.
・From the state of the mainspring being sufficiently wound, it continuously operates
for 55 hours or more.
・For Grand Seiko mechanical watches, only completed products are shipped which
have been carefully assembled and adjusted by dedicated craftsmen, and passed
by exacting certification examinations which continue for 17 days according to the
"Grand Seiko Standard," Seiko's exclusive accuracy standard of mechanical
watches.
⇒ For details of the "Grand Seiko Standard," refer to pages 60 to 66.
Names of the parts
Date
Hour
Hand
Second
Hand
Crown
Minute
Hand
48
HOW TO USE
HOW TO USE
