Grand Seiko watches have always been premium watches, and this model is no different. Model reference 4843-8110 or QNK090

HOW DO WE DATE THIS WATCH?

From the serial number on the case back we can accurately date this watch to being made in January 1978. We have found the original brochure for this 4843-8110 model watch, showing a price of ¥70,000.

CONDITION

Seiko were the first to launch a quartz regulated watch in 1969, and they lead the way in developing high end quartz watches too – something they continue to do with their Grand Seiko range today. The 4843B calibre in this watch was regulated to run at +/- 10 seconds a month, which compared with a new watch meeting COSC Chronometre standards of +6/-4 seconds per day is still remarkable. Not all quartz watches are equal. This extends to the quality of materials and finish on the case, as you would expect from an expensive watch of its day. The case has not been polished, so does show some marks. The original bracelet, part XBB070, has been cleaned in our ultrasonic bath. It is long and has the original signed clasp GQ Both the clasp and links for this bracelet are difficult to find, and expensive to buy if you can find them, so better to get a bracelet long enough to start. The dial and hands are both excellent, as is the glass. We will install a brand new battery before sending the watch out to the new owner.

There is an interesting and completely independent blog on these Grand Quartz and King Quartz models you can read here.

This watch will be supplied with our branded presentation box and our Certificate of Authenticity.

Please see the HD video for more detail. All photos and videos are part of the description and are of the actual watch unless mentioned. We do not photoshop any pictures, and the images are copyright of birthyearwatches.com and should not be used without permission.

​SIZE

Width with crown 37.3 mm

Width without crown 35.7 mm

Between lugs 18 mm

Lug to lug length 40.2 mm

Case Thickness 10.1 mm

Bracelet will fit a maximum wrist size of 178 mm. The bracelet can be sized for you if you give us your wrist size when placing the order.

All sizes are approximate.

Included with this watch is a 3 month guarantee and free delivery to UK addresses. If you live outside the UK we can still deliver to most countries. Please see our Worldwide Shipping information, or Contact Us. Payment can be made by most credit or debit cards, bank transfer or PayPal.

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