Seiko 5R66 Specifications download pdf (Page 7)

4746

■HOW TO USE（HOW TO WIND THE MAINSPRING）

This watch is a self-winding watch equipped with a manual winding mechanism.

・When the watch is worn on the wrist, the motion of the wearer

’

s arm winds

the mainspring of the watch.

・When first using a stopped watch, it is recommended that you manually wind

the mainspring by turning the crown.

●How to manually wind the mainspring by turning the crown

1. The crown is a screw-lock type crown. Turn the crown counterclockwise（the

6 o

’

clock direction）to unlock the screw.（When the screw is completely

unlocked, the crown is projected outward from its original position.）

■NAMES OF THE PARTS

※The crown is a screw lock type crown. To operate the crown, unlock the crown by unscrewing

it. Keep the crown locked unless it is necessary to operate the crown.

When screwing the crown in, turn it slowly with care, ensuring that the screw is properly

engaged. If it is stiff and difficult to work, unscrew it and redo it. Be careful not to forcibly

tighten the screw, as doing so may damage the screw.

Minute hand

Rotating bezel

First click position: Time difference

adjustment/Date setting

Second click position: Time setting

Crown

Screw lock type crown unlocked: winding

up the mainspring (manual operation)

Screw lock type crown locked

Date

24-hour hand

Power reserve

indicator

Second hand

Hour hand

※Although the rotating bezel is removable by design for easy maintenance, do

not attempt to unscrew the two upper screws. SEIKO assumes responsibility

for maintenance.

WARNING

4948

4. Gently turn the crown clockwise（the 12

’

clock direction）while pressing it, until

it is screwed all the way in and locked.

※While screwing the crown in, the watch clicks as the mainspring is wound. This

should not cause any concern since this is caused by movement of the mainspring.

※To check the winding state of the mainspring, refer to“■ HOW TO READ THE

POWER RESERVE INDICATOR ”on page 67.

※There is no need to turn the crown further when the mainspring is fully wound. The

crown can be turned without damaging the watch mechanism; it only winds the

mainspring free.

2. After unlocking the screw, slowly

turn the crown clockwise（the 12 o

’

clock direction）to wind the main-

spring. Take care not to press

down the crown.

※As for manual winding, if you give the

crown five full rotations, it provides the

power to run the watch for approxi-

mately ten hours.

※If the crown is turned counter-

clockwise（the 6 o

’

clock direction）, the

mainspring of the watch will not be

wound.

3. Wind the mainspring until the

power reserve indicator shows a full-

wound state. Immediately, the

second hand starts moving.

5150

〈Type 2〉Using the 24-hour hand to indicate the time in a different time zone.

・By setting the 24-hour hand to the time of a place different from where you live

（somewhere with time difference）, this type uses the 24-hour and hour/minute hands

for dual time display.

・For instance, by setting the 24-hour hand to GMT while setting the hour and minute

hands to indicate Japan time, you can easily check GMT with the 24-hour hand at any

time.

■

HOW TO SET THE TIME AND DATE, HOW TO USE THE TIME DIFFERENCE ADJUSTMENT FUNCTION

●HOW TO SET THE TIME

〈Type 1〉Simply using the 24-hour hand to show the 24-hour time as an AM/PM

indicator.

・This is the standard usage type for the 24-

hour hand.

・For instance, by setting the hour, minute and

24-hour hands to Japan time, even if you set

the hour and minute hands to display the time

of the place you are staying while traveling

abroad by using the time difference

adjustment function, you can easily check the

time in Japan with the 24-hour hand which is

quite convenient.

・When setting the date and time, ensure that the watch is working: the main spring

is sufficiently wound.

・If your watch has a 24-hour hand, it has two different types of 24-hour hand usage.

Since the time setting method differs according to the type of usage, please choose

the type before setting the time.

5352

2. Turn the crown counterclockwise to set the 24-hour and minute hands to the

current time.

＜Example＞

To set to 10：00 A.M., adjust the 24-hour hand to indicate“10”on the 24-hour scale（5 o

’

clock position）, and the minute hand to the“0”minute position.

To set to 6：00 P.M., adjust the 24-hour hand to indicate“18”on the 24-hour scale（9 o’

clock position）, and the minute hand to the“0”minute position.

※Only the 24-hour and minute hands are to be set at this stage. The hour hand is to be

set later so it is not necessary to adjust the hour hand yet, even if it is indicating the

wrong time.

※The date may be altered depending on the position of the hour hand, however it

should not cause any concern since it can also be adjusted later.

※Set the minute hand behind the time and then slowly advance it to the desired time.

1. Unscrew the crown by turning it counterclockwise（the 6 o’clock direction）,

and then pull it out to the second click.

※Pull the crown out when the second hand is at the 12 o

’

clock position since the second

hand will be stopping on the spot.

※When setting the time, ensure that the watch is working:the mainspring is sufficiently

wound.

How to set the 24-hour hand as a regular 24-hour indicator〈When the type 1 usage is selected〉

Screw lock type crown locked

Screw lock type crown unlocked

Second click position

1 2 3 4 5 6 7 8 9 10 11

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Seiko 5R66 Specifications Page 7

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