> SPECIFICATIONS (Movement)

SPECIFICATIONS (Movement)

Caliber no.

9S86, 9S85

Common features

Hour Hand, Minute Hand, Seconds Hand, Date.

Extra features for Cal. 9S86 only

24-hour hand, Time difference adjustment function interrelated with the day display

Vibrations

36,000 per hour (10 per second)

Loss/gain (Grand Seiko Standard)

Mean daily rate*: -3 to +5 seconds

Loss/gain (Grand Seiko Special Standard)

Mean daily rate*: -2 to +4 seconds

Driving system

Automatic winding type with manual winding function

Power reserve

For 55 hours or more. *From the state of the mainspring being sufficiently wound.

Jewels

37 jewels

Caliber no.

9S66, 9S68, 9S65, 9S61, 9S64, 9S63

Common features

Hour Hand, Minute Hand, Seconds Hand.

Extra features for Cal. 9S66, 68, 65

Date

Extra features for Cal. 9S66 only

24-hour Hand

Extra features for Cal. 9S63 only

Power reserve indicator

Vibrations

28,800 per hour (8 per second)

Loss/gain

Mean daily rate*: -3 to +5 seconds

Driving system

9S66, 9S68, 9S65, 9S61: Automatic winding type with manual winding function

9S64, 9S63: Manual winding type

Power reserve

For 72 hours or more.* From the state of the mainspring being sufficiently wound.

Jewels

9S66, 9S68, 9S65: 35 jewels,

9S63, 9S61: 33 jewels,

9S64: 24 jewels

Caliber no.

9S27

Features

Hour Hand, Minute Hand, Seconds Hand, Date.

Vibrations

28,800 per hour (8 per second)

Loss/gain

Mean daily rate*: -3 to +8 seconds

Driving system

Automatic winding type with manual winding function

Power reserve

For 50 hours or more. *From the state of the mainspring being sufficiently wound.

Jewels

35 jewels

Mean daily rate*:

A mean value of daily rates in a condition where the movement before assembly in a case are measured in 6 positions in a fixed manner under artificially controlled environment for 17 days.

Caution: Depending on conditions of use (such as normal usage time, temperature environment, and winding state), accuracy may exceed the abovementioned range. Therefore, for normal usage accuracy when it is actually used, -1 to +10 seconds (-1 to +8 seconds for Cal. 9S86 and 9S85, –5 to +10 seconds for Cal. 9S27) per day are specified as target values.

The specifications are subject to change without prior notice due to product improvement.