English

SCREW LOCK TYPE CROWN

 

Some models have the screw lock type crown, which can be locked by the screw

when it is not necessary to be operated.

 

Locking the crown will prevent operating errors.

 

 

Unscrew the crown before any crown operation. When the operation is over,

 

screw the crown in to lock.

 

 

HOW TO OPERATE THE SCREW LOCK TYPE CROWN

 

If your watch has a screw lock type crown, unscrew it before any crown operation.

 

Always keep the crown locked unless it is necessary for operating the crown.

 

[To unscrew the crown]

 

 

Turn the crown counterclockwise (down-

The crown can be pulled out.

 

ward) to unscrew it. The crown is unlocked

 

and can be operated.

 

HOW TO WAKE UP THE WATCH FROM POWER SAVE MODE

Do not pull out the crown to the second click position before performing the following

English

In order to “wake up” the watch from power save mode, swing the watch gently

 

 

from side to side to recharge it.

 

 

procedures. This will cancel the time relay function.

 

Swing the watch from side to side approximately 4 to 6 times rhythmically at a rate of twice a second, making an arc of about 20 cm as shown in the illustration below.

No additional benefit is obtained by swinging the watch with

greater vigor.

When the watch is swung, the oscillating weight in the generating system rotates to drive the mechanism. As it rotates, it gives out a sound, which is not a malfunction.

1. Only the hour, minute and 24-

hour hands move quickly to indi-

cate the current time which has

2. Then the second hand will follow

quickly to resume the normal

movement.

[To screw the crown in]

Upon completion of the crown operation, screw the crown in completely until it stops by turning it clockwise (upward) while gen- tly pressing it back into the original position.

10

Turn the crown while pressing it back in.

been internally retained in the

built-in IC.

The second hand remains still.

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Seiko 7D56 HOW to Wake UP the Watch from Power Save Mode, HOW to Operate the Screw Lock Type Crown, To screw the crown

7D48, 7D46, 7D56 specifications

The Seiko 7D56, 7D46, and 7D48 are notable movements within Seiko's lineup of automatic watches, celebrated for their precision, reliability, and innovative features. These movements are part of the caliber family that showcases Seiko's commitment to quality craftsmanship and ingeniously designed technology.

The Seiko 7D56 is an automatic movement that stands out for its remarkable features, including a date display and day of the week complication, which adds a practical edge to its functionality. The movement utilizes a 21,600 vibrations per hour (vph) frequency, which ensures smooth operation and accurate timekeeping. One of its distinctive aspects is the hacking feature, allowing users to stop the second-hand while setting the time, leading to increased accuracy when syncing with another timepiece.

The 7D46, similar in design to the 7D56, merges functionality with style. It presents a sleek profile and appeals to those who appreciate both classic and contemporary aesthetics. Like the 7D56, it also includes a date function and operates at a frequency of 21,600 vph. This movement is particularly renowned for its durability and versatility, making it a preferred choice among watch enthusiasts seeking a reliable automatic timepiece.

The 7D48 movement is another esteemed member of this family, often found in Seiko's diverse range of watches. It features a power reserve of approximately 40 hours, making it a dependable option for daily wear. The 7D48 is crafted to be lightweight, which adds to wearing comfort while maintaining its robustness. Like its counterparts, it offers reliable timekeeping with a simple yet elegant design that fits various styles and occasions.

All three movements benefit from Seiko's advanced engineering and design philosophy, which emphasizes longevity and performance. They are crafted using high-quality materials and are meticulously assembled, ensuring that each movement meets the company's rigorous standards. Moreover, the incorporation of a transparent case back in many models allows wearers to appreciate the intricate mechanics at play within these movements.

In summary, the Seiko 7D56, 7D46, and 7D48 movements represent a harmonious blend of functionality, reliability, and aesthetic appeal. They embody Seiko's dedication to innovation while providing watch enthusiasts with exceptional timepieces that cater to diverse preferences and needs. These movements are a testament to Seiko's esteemed position in the world of horology.