A very expensive when new and accurate Seiko Grand Quartz, with the very popular snowflake textured dial.  Model reference 4843-8100 or QNK050


From the serial number on the case back we can accurately date this watch to being made in June 1977.


At ¥100,000 when this was new, this was one of the most expensive Seiko watches you could buy – over four times more expensive in 1976 than a mechanical bullhead 6138 chronograph.  Adjusted for inflation, that price would be £1,250 today.  It was also one of the most accurate watches on the planet, with a claimed +/- of 5 seconds per month (COSC Chronometer standards for mechanical watches is +6/-4 seconds per day.)

The snowflake dial is now very sought after, and deservedly so.  The way it shimmers and catches light is fantastic.  This dial is original and clean, and all the lettering remains.  The stainless steel case has some marks, but they are mainly around the bezel.  The important case bevels are all in tact and this has not been polished away like on some examples, but there is some damage to the bezel nearest 2.  The bracelet is a new modern one, not by Seiko.  This is a shame, as the quality is lower than the original bracelet, but the price reflects this – the last silver snowflake we had sold quickly for a lot more money.  Mechanically the watch is working perfectly having just been serviced, with all functions functioning including the quick set day and date (the day wheel is in Kanji and English).  The correct signed crown is still fitted.  We will fit a new battery before sending this watch out.

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.


Width with crown  37.3 mm

Width without crown  35.9 mm

Between lugs  18 mm

Lug to lug length  42.1 mm

Case Thickness  10.1 mm

Bracelet will fit a maximum wrist size of 200 mm.  The bracelet can be sized for you if you give us your wrist size when placing the order.

All sizes are approximate.  The watch is photographed on a wrist of 190mm/7.5 inches.

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.

From 1st September 2021 we will be planting a tree for every watch we sell, working with the International Tree Foundation (Est 1922) to make this business positive on carbon.  By buying anything pre owned you are effectively reusing what already exists, but this takes it further and makes us feel good.