This Seiko King Quartz uses the twin quartz movement, so is highly accurate and a step above almost all other quartz watches.  Model reference 9923-7000 or QFA048.

HOW DO WE DATE THIS WATCH?

From the serial number on the case back we can accurately date this watch to being made in July 1979.  But there is also an engraving for 1980, so we can say it was made in ’79 and presented in 1980.

CONDITION

The King Seiko was upper middle in Seiko’s massive different model line up in 1979.  This watch would have cost ¥60,000, and you could have easily spent half of that on a Seiko Quartz watch.  The twin quartz movement used in this watch though was accurate to +/- 20 seconds per year, bettered only by the versions in the Grand Quartz and the Superior watches which were +/- 10  and +/- 5 seconds per year respectively.  You also get quick set day and date, which the day being in either English or Kanji.  We will install a brand new battery before sending the watch out to the new owner.  The dial has some marks, but also has two piece hour markers – one deep, one slim – which is time consuming to make but look good now, 40+ years on.  The original bracelet, part number XOB630, is full length and requires no special tool to adjust it.  The bracelet has been cleaned in our ultrasonic bath.  Neither case nor bracelet have been polished so will show surface scratches.  The watch is signed on the dial, case, movement crown, and clasp.

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  35.8 mm

Width without crown  34.5 mm

Between lugs  18 mm

Lug to lug length  39.9 mm

Case Thickness  8.2 mm

Bracelet will fit a maximum wrist size of 205 mm.  The bracelet can be sized by you without tools.

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

Included with this watch is a 2 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.

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