Seiko 7D46, 7D56, 7D48 manual HOW to SET the Perpetual Calendar

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CAUTION

●Avoid setting the time or calendar at a time between 23:00 and 1:00.

✽If you adjust the time or calendar at a time between 23:00 and 1:00, and the date is incorrectly advanced or delayed one day, readjust the watch avoiding the above period of time.

●While the watch runs in normal operation, the date changes during the time between 23:30 and 0:30.

■HOW TO SET THE PERPETUAL CALENDAR

●Date, month and year are interlocked on the perpetual calendar. To set the month or year, advance the date by turning the crown until the month or year becomes adjustable.

✽The calendar can be adjusted by turning the crown in either direction upward or downward at the first click position.

<Remarks on month, year settings>

When the date advances to change to “ 1 ,” the month indicator rotates for one month to indicate the following month. When the date advances further until the month indicator moves forward from December (DEC) to January (JAN), the year indicator rotates to show the following year.

CAUTION

●When setting the calendar in the direction backward, put the date back for one or two days behind the date you wish to set, and then advance it to the desired date.

✽Follow the above procedure for setting the calendar in the direction backward, otherwise the date numeral may not appear in the center of the calendar frame. Even though this happens, the date display will be aligned correctly the following day.

✽When setting the calendar backward to dates in December, the year indicator may not be correctly aligned. In that case, set the calendar back to November then forward it to the correct date in December.

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Contents Cal D46, 7D48 & 7D56 Contents Features Power Save Function and Time Relay FunctionPerpetual Calendar Function Watch remains operable for approximately four yearsBefore Initial USE Power Save FunctionDisplay and Button Operation Remarks on Power Save Function Time Relay FunctionHOW to Wake UP the Watch from Power Save Mode HOW to Operate the Screw Lock Type CrownScrew Lock Type Crown To unscrew the crownSecond click position Original position HOW to SET the Time and CalendarHOW to SET the Time Cal D46 HOW to SET the Perpetual Calendar Avoid setting the time or calendar at a time between 2300Cal D48 Cal D56 Crown at the firstClick position Crown at the first click positionEnergy Depletion Forewarning Function HOW to Charge the WatchIf the Second Hand Starts Moving AT TWO Second Intervals Power Reserve Guidelines for the Rechargeable Battery Generate power to resume the normal operational movementPower to run the watch for approximately one day 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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