A prototype Seiko Grand Quartz with the twin quartz movement, stamped SAMPLE on the case back.  Model reference 9943-5000 or QGC020.

HOW DO WE DATE THIS WATCH?

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

CONDITION

As this was a sample to show dealers what is coming out in the 1979 catalogue, we are going to make an unusual allowance.  Although the model number is stamped 9943-5000, this should have the date only 9942 movement that was first introduced in 1979.  However we have stripped the case down and photographed the movement and it is the 9943.  It makes no practical difference, but we just want to but totally up front and in all likelihood the dial for the date only model was available but not the movement as yet.  All these 94xx series movements are thermocompensated for incredible accuracy – Seiko quoted +/- 10 seconds per year!  We will install a brand new battery before sending the watch out to the new owner.  The dial is far from perfect, and we don’t know if this prototype ever had the bracelet fitted but it isn’t with the watch now.  The glass has very minor marks and the original twin quartz crown is still fitted.  The leather strap is new, and could be swapped for a different colour if preferred.

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  35.7 mm

Width without crown  34.3 mm

Between lugs  20 mm

Lug to lug length  40.8 mm

Case Thickness  9.2 mm

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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