
GM15 GM10 GM00
10 ½’’’
Size
<ligne>
Height
<mm>
2.71(GM00 2.94)
Accuracy
<per Month>
±20 sec
1,000 pcs
Original
Package
Clearance
Movement
0.3-0.4mm
0.15mm
Hand
case
3 years(GM15 5 years)
Battery
Life
Battery consumption could be minimum
by pulling out the stem (=Power-Saving)
Minute 0.40
Second 0.09
Balance
Weight
<μN.m>
Featured by Shock Detection
GM00
GM10 GM15
7 7
SUN
7
Setting the Time
Setting the Date and Day
DO NOT set Date between 9:00pm – 1:00am
DO NOT set Date between 11:15pm – 6:00am
7
Date
SUN
Day
GM00
Φ22.6
SR621SW
Attached
Stem
065-543
Assembled Hour Wheel
Non Breakable Date Construction
Dust Proof
Covered Coil
Super Quick Date Adjusting
Easy Assembling on Flat Desk

Tuning fork type quartz crystal
20 second / month worn under normal circumstances
Two-pole stepping motor
Two-pole stepping motorTwo-pole stepping motor
Two-pole stepping motor
No(0) jewels
No(0) jewelsNo(0) jewels
No(0) jewels
Second hand stopping at optional position
Super Quick Date Change by turning crown (except GL30)
Powercell Saving Reset Mechanism(PSRM)
Over-loading Compensation Device(OLCD)
Digital Frequency Control(DFC) for time adjustment
< Balanceable weight of hand >
* Measurement of time rate
The unit(gate) time of measurement must be set at "10 sec." or integer fold value of 10 sec. Owing to
the DFC system, and the measurement must be performed in the form of complete watch.
* subject to the glass, case structure, and the length of hand
* Interchangeability of appearance components:
*respectively Date to Date
Dial Foot positon & the diameter
same as Cal. 1L/1M series*
same as Cal. 1L/1M series*
same as Cal. 20,21,1L/1M series*
Basically same as 1L/M* (Please be careful not to push
3H & 9H side by your movement holder except GL30.)
same as Cal. 1L/1M series (except GN10)*
Setting stem
N/A
N/AN/A
N/A ○○○○
Calibre
SILVER OXIDE SR621SW or equivalent
GL30 GL10
8
3/4
'''10
1/2
'''
GL30
3 Years
Battery
Overall length
16.1 x 17.8
16.1 x 18.2
Overall diameter
GM10 GN10
Calibre
Ligne
6
3/4
x 8'''
065-547
Battery Life
Hands
GN10GM10GL10
Total height
Case fitting length
15.3 x 17.8
15.3 x 18.2
Case fitting diameter
3 Hands
3 Hands3 Hands
3 Hands
2.28mm 2.71mm
065-543 065-547065-541
Φ23.7 x 22.6(3H-9H) x
22.6(6H-12H)
Φ20.0 x 18.0(3H-9H)
Φ23.3 x 21.4(3H-9H) x
22.1(6H-12H)
Φ19.4 x 17.0(3H-9H)
1. Basic Specification
2. Separated Parts
3. Remarks

1. Pull the crown out to the 2nd Click Position. (GL30 : 1st Click Position)
2. Turn the crown to set hour and minute hands.
3. After the time has been set, push the crown back to the Normal position.
B) SETTING THE DATE (except GL30)
1. Pull the crown out to the 1st Click Position.
2. Turn the crown counter-clockwise to set the date.
* If the date is set between the hours of around 9:00 PM and 1:00 AM, the date may not change on
the following day.
3. After the date has been set, push the crown back to the Normal position.
These specifications might be changed without prior notice.
4. Instruction Manual
Normal
NormalNormal
Normal
1st
1st1st
1st 2nd
2nd2nd
2nd

ORIGINAL PARTS, MADE IN JAPAN
BATTERY 280-3409 280-3409 280-3409 280-3409 280-3409 280-3409
BATTERY CLAMP 234-A50 234-A32 234-A48 234-A44 234-A47 234-A34
CALENDAR CORRECTOR INT. WHEEL(1) - - 087-113 087-113 087-113 087-113
CALENDAR CORRECTOR INT. WHEEL(2) - - - 087-114 - 087-114
CALENDAR CORRECTOR LEVER - - 116-123 - 116-123 CALENDAR CORRECTOR OPERATING WHEEL - - 255-430 255-430 255-430 255-430
CALENDAR PLATE - - 714-047 714-043 714-045 714-041
CANNON PINION WITH DRIVING WHEEL 028-342 028-335 028-339 028-336 028-339 028-336
CENTER WHEEL COCK 711-199 711-199 711-200 711-200 711-200 711-200
CLUTCH WHEEL 064-101 064-101 064-101 064-101 064-101 064-101
COIL UNIT 246-203 246-203 246-203 246-203 246-203 246-203
DATE DIAL (DATE DISK) - - 108-F8XX 108-G2XX 108-F7XX 108-G1XX
DATE DIAL DRIVING WHEEL - - 103-125 103-123 103-125 103-123
DATE DIAL GUARD - - 293-127 293-123 293-127 293-123
DATE JUMPER - - 109-430 109-430 109-430 109-430
DAY DIAL GIB - - 178-140 - 178-140 DAY DIAL (DAY DISK) - - 308-A5XX - 308-A4XX ELECTRONIC CIRCUIT UNIT 279-E56 279-E56 279-E56 279-E56 279-E56 279-E56
FIFTH WHEEL AND PINION 084-860 084-860 084-860 084-860 084-860 084-860
FOURTH WHEEL AND PINION 023-379 023-371 023-377 023-372 023-377 023-372
HOUR WHEEL 075-535 075-535 075-543 075-537 075-543 075-537
HOUR WHEEL GUARD 176-119 176-119 - - - MINUTE WHEEL AND PINION 072-131 072-131 072-131 072-131 072-131 072-131
YOKE (TRAIN WHEEL SETTING LEVER) 292-360 292-360 292-360 292-360 292-360 292-360
ROTAR 285-226 285-226 285-226 285-226 285-226 285-226
SCREW (COIL, CIRCUIT, BATT. CLAMP) 922-204 922-204 922-204 922-204 922-204 922-204
SCREW FOR DATE DIAL GUARD - - 929-680 929-680 929-680 929-680
SETTING LEVER SPRING 019-260 019-260 019-260 019-260 019-260 019-260
SETTING STEM 065-541 065-541 065-547 065-547 065-543 065-543
SETTING WHEEL 076-700 076-700 076-700 076-700 076-700 076-700
STATOR 190-198 190-198 190-198 190-198 190-198 190-198

INSTRUCTION MANUAL FOR MIYOTA WATCH MOVEMEN
BATTERY:
INSTRUCTION MANUAL
)DISPLAY
*Date position may be located at different position depends on models.
B) SETTING THE TIME
1. Pull the crown out to the 2nd position.
2. Turn the crown to set hour and minute hands.
3. When the crown is pushed back to the normal position,
second hand begins to run.
C) SETTING THE DATE
1. Pull the crown out to the 1st position.
2. Turn the crown counter-clockwise to set the date.
* If the date is set between the hours of around 9:00 PM and 1:00 AM, the date may
not change the following day.
3. After the date has been set, push the crown back to the normal position.
Hourhand
Minutehand
Normalcrown
position
1stposition
Secondhand
*Date
2ndposition