One of the most accurate quartz watches at the time, this Grand Quartz from Seiko has the twin quartz technology.  Model reference 9943-5000 or QGB050

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 1979.

CONDITION

You could buy an automatic men’s Seiko in 1979 for ¥16,000, but this near range topper twin quartz grand quartz was ¥95,000 (the twin quartz superior was the range topper, at a heady ¥230,000).  This example has the correct bracelet, part XBB220, but like many of these watches it is quite short.  However the previous owner has managed to find two extra links from a different bracelet that do fit and make it a wearable size – you will see them in the video and on the wrist photo.  You could always swap this to a leather strap if you need the extra size or prefer that look, as it is not an integrated bracelet.  The TV style case, glass and dial are all good and the hands straight.  The dial has dotting right at the very edge, and the case has a small nick near the crown, but it is unpolished by us – our skills would not match the standards of a Grand Seiko watch case polisher.  The in house 9943 quartz movement was accurate to +/- 10 seconds a year (out of 31,536,000 seconds is amazing!).  We will install a brand new battery before sending the watch out to the new owner.

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  34.0 mm

Between lugs  20 mm

Lug to lug length  40.8 mm

Case Thickness  9.0 mm

Bracelet will fit a maximum wrist size of 175 mm , or 195 mm including the extra links.  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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