Seiko 7D56 Features, Power Save Function and Time Relay Function, Perpetual Calendar Function

Page 3

English

FEATURES

SEIKO KINETIC Cal. 7D46/7D48/7D56 is an analogue quartz watch equipped with the Kinetic technology developed by SEIKO. It generates the electric energy to power the watch, utilizing the movement of your body, and stores it in the rechargeable battery, which requires no periodical replacement unlike conventional button-type batteries. The watch is provided with the following additional functions.

POWER SAVE FUNCTION AND TIME RELAY FUNCTION

In order to conserve the stored electrical energy, the watch automatically enters power save mode to stop the hands from moving approximately 24 hours after the

watch is taken off the wrist. When you decide to wear the watch again, simply swinging the watch several times will

awaken it and the hands will indicate the correct time to resume normal operation.

❖ The time retrieved by the time relay function may include a certain amount of time loss or gain within the range of accuracy of the watch ( 15 seconds per month).

❖In a case that the fully charged watch enters the power save mode, the time relay function

of the watch remains operable for approximately four years.

PERPETUAL CALENDAR FUNCTION

●Once set, the calendar automatically adjusts for odd and even months including February of leap years. (Exceptionally, the manual adjustment at the end of February is required for the years that are divisible by four but are not leap years, which comes only once every hundred years, for example, the year 2100.)

✽It takes approximately two seconds for the calendar to change its display. However, it may take two minutes if the temperature is low or the stored electrical energy is being depleted.

●While the watch is in power save mode, the perpetual calendar continues to function.

●Even if the watch is completely stopped due to a shortage of stored electrical

energy, the calendar can be manually adjusted by simple procedures.

CAUTION

●The movement of your arm while the watch is worn generates electrical energy to power the watch. Even if the watch is worn on your arm, it will not be charged while your arm is not in motion.

●It is recommended that the watch be worn on your wrist daily for at least 10 hours.

English

4

5

Page 2 Page 4
Image 3
Page 2 Page 4
Contents Cal D46, 7D48 & 7D56 Contents Watch remains operable for approximately four years FeaturesPower Save Function and Time Relay Function Perpetual Calendar FunctionPower Save Function Display and Button OperationBefore Initial USE Time Relay Function Remarks on Power Save FunctionTo unscrew the crown HOW to Wake UP the Watch from Power Save ModeHOW to Operate the Screw Lock Type Crown Screw Lock Type CrownHOW to SET the Time and Calendar HOW to SET the Time Cal D46Second click position Original position Avoid setting the time or calendar at a time between 2300 HOW to SET the Perpetual CalendarCrown at the first click position Cal D48 Cal D56Crown at the first Click positionHOW to Charge the Watch If the Second Hand Starts Moving AT TWO Second IntervalsEnergy Depletion Forewarning Function At a rate of twice a second, making an arc of about 20 cm Power Reserve Guidelines for the Rechargeable BatteryGenerate power to resume the normal operational movement Power to run the watch for approximately one daySpecifications

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.
Top Page Image Contents