Seiko Comprehensive Guide on Time and Calendar Adjustment for 7D46 and 7D56 Models
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3. Turn the crown to rotate the year indicator until the desired indication appears.

English

Continue to turn the crown until the month becomes adjustable.

 

 

Month display

Example: Position of the month display hand (July)

4.Turn the crown to set the month display hand to indicate the correct month. Then continue to turn the crown to set the date.

Example: Date display of the 26th

5.Upon completion of the calendar adjustment in sequence of year, month and date, push the crown back into the original position.

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IF THE SECOND HAND STARTS MOVING AT TWO-

SECOND INTERVALS

English

 

(ENERGY DEPLETION FOREWARNING FUNCTION)

 

● When the second hand starts moving at two-second intervals whether it is worn

 

or left untouched, the watch may run down within approximately 12 hours.

 

● When the watch wakes up from power save mode while it is running on extremely

 

low electrical power, the second hand starts moving at two-second intervals.

 

● In such a case, swing the watch from side to side to sufficiently charge the

 

rechargeable battery, and then reset the time and calendar.

 

■HOW TO CHARGE THE WATCH

1.Swing the watch from side to side rhythmically at a rate of twice a second as shown in the illustration below.

This movement will recharge the watch to start moving at the normal one-second intervals from the two-second interval movement. If you find the second hand moving at two-second intervals after swinging the watch, swing it further until the second hand moves at the normal one-second intervals.

✶ After swinging the watch, check that the second hand is moving at one-second intervals.

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Contents Cal D46, 7D48 & 7D56 Contents Perpetual Calendar Function FeaturesPower Save Function and Time Relay Function Watch remains operable for approximately four yearsDisplay and Button Operation Power Save FunctionBefore Initial USE Remarks on Power Save Function Time Relay FunctionScrew Lock Type Crown HOW to Wake UP the Watch from Power Save ModeHOW to Operate the Screw Lock Type Crown To unscrew the crownHOW to SET the Time Cal D46 HOW to SET the Time and CalendarSecond click position Original position HOW to SET the Perpetual Calendar Avoid setting the time or calendar at a time between 2300Click position Cal D48 Cal D56Crown at the first Crown at the first click positionIf the Second Hand Starts Moving AT TWO Second Intervals HOW to Charge the WatchEnergy Depletion Forewarning Function Power to run the watch for approximately one day Power Reserve Guidelines for the Rechargeable BatteryGenerate power to resume the normal operational movement At a rate of twice a second, making an arc of about 20 cmSpecifications

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.
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