The pinnacle Grand Quartz with the highly desirable snowflake dial and the twin quartz movement.  Model reference 9943-8020.

HOW DO WE DATE THIS WATCH?

From the serial number on the case back we can accurately date this watch to being made in August 1978.

CONDITION

In 1978 the top of the range Seiko was called the Superior, which cost ¥230,000 and was accurate to +/- 5 seconds per year.  Beneath that was the Twin Quartz Grand Quartz, which was accurate to +/- 10 seconds per year and cost ¥100,000.  Yet the cheaper watch had the cooler dial.  (In context, you could get five automatic chronograph Seiko’s for the cost of this Grand Quartz!)  This deep textured dial nicknamed snowflake has been reintroduced into the new Grand Seiko range, and is still sought after.  The twin quartz is what gave the amazing timekeeping – one crystal just regulated the other crystal – you also get quick set day and date, and the day can be in English or Kanji.  The crown is signed with the twin quartz logo, but has also got some damage that does not affect the operation of the watch.  We will install a brand new battery before sending the watch out to the new owner.  The bracelet is not the original one, but it is an attractive alternative from Maruman of Japan.  The bracelet has been cleaned in our ultrasonic bath.

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  36.8 mm

Width without crown  35.2 mm

Between lugs  18 mm

Lug to lug length  41.2 mm

Case Thickness  8.8 mm

Bracelet will fit a maximum wrist size of 200 mm.  The bracelet can be sized easily without any tools.

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.

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