Seiko 9R15 How To Use, Crown, Screw-lock type crown, Power reserve indicator, turns, Normal crown

■HOW TO USE

Crown

There are two types of crowns, a normal crown and a screw-lock crown.

While	The	Normal crown
pressing the	crown	Pull out the crown and
crown in,	turns.	operate it.
turn it in the
direction
indicated by	The	Screw-lock type crown
the arrow.
	crown	Unlock the crown	After operating
	does not
	turn.	before operating it.	the crown, lock it.
	※ It cannot be	Unscrew	While pressing
	turned any
			the crown
	further.
※ By locking the crown by screw, a
screw-lock type crown can prevent
malfunction and increase water			Screw
resistance.
※ Be careful not to screw the crown
in by force as it may damage the
slots of the crown.

Screw-lock type crown

The screw-lock type crown features a mechanism that can securely lock the crown when they are not being operated in order to prevent any operational errors and to improve its water resistant property

○It is necessary to unlock the screw-lock type crown before operating it.

○Once you have finished operating the crown, make sure to relock it.

Power reserve indicator

The power reserve indicator lets you know the winding	English
state of the mainspring.
Before removing the watch from your wrist, observe the power reserve
indicator to check if the watch has stored enough power to keep running
until the next time you wear it. If necessary, wind the mainspring.
(To prevent the watch from stopping, wind the mainspring to store the
excess power that will allow the watch to run for extra time.)

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Power reserve indicator

※The continuous operating time of the watch may vary depending on the condition of use, such as the number of hours you wear the watch or the extent of your movement while wearing it.

※In a case where you wear the watch for a short period of time, observe the power reserve indicator to check the level of the remaining power. If necessary, manually wind the mainspring.

How to read the power reserve indicator

【To unlock the crown】

Turn the crown counterclockwise (downward) to unscrew it. Now the crown can be operated.

Unlock the crown	Crown
before operating it.	locked
Unscrew

【To lock the crown】

Turn the crown clockwise (upward) while gently pressing it in toward the watch body until it stops.

Crown	After operating
unlocked	the crown, lock it.
	While pressing
	the crown in

Screw

Power reserve

indicator

Winding state of	Fully wound	Half wound	Unwound
the mainspring
Number of hours	Approximately 72	Approximately 36	The watch either stops
the watch can run	hours (3 days)	hours (1.5 days)	or is running down.

※ The watch employs a device to prevent overwinding of the mainspring. Once the

※When locking the crown, turn it slowly with care, ensuring that the screw is properly engaged. Be careful not to push it in forcefully, as doing so may damage the screw hole in the case.

mainspring is fully wound, the mainspring slips inside, disengaging the winding

mechanism. When this happens, you can still turn the crown without damaging

the watch, however, please refrain from excessive operation of the mainspring.

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