Powered by the same movement in the best electronic watches, this gold capped Eterna Sonic is humming away nicely.

HOW DO WE DATE THIS WATCH?

The Eterna Sonic range was launched in 1970, and ran until 1975.  Unlike mechanical Eterna watches these do not have serial numbers on the movement, so we have simply picked the mid point year for this model.

CONDITION

Inside this case is an ESA 9162, albeit branded Eterna-Sonic 1550, and that is the same movement you find in all the higher quality electronic watches.  ESA licensed the technology from Bulova in 1968, which is acknowledged inside the case back, and then made versions for different manufacturers.  Omega f300, IWC Electronic, Tissot Tissonic and Longines Ultronic among others that all used the same movement, just badged slightly differently for each brand.  The movement is keeping good time and we will install a brand new battery before sending the watch out to the new owner.  The only thing to make people aware of is that the date is not changing overnight as it should, but it does change on the quickset easily.  This is shown on the video.  The leather strap is new, and could be swapped for a different colour if preferred.  The dial and hands are both very good.  The case is gold capped, by which we mean it is stainless steel with a layer of solid gold applied over the top.  The smooth case design lends itself nicely to this treatment, and you can see from the edge how thick the gold is, which is why the gold is showing no wear.  Having the second hand in red is a nice styling touch, as the smooth sweep of the second hand is a major appeal of these electronic watches.

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  38.2 mm

Width without crown  36.4 mm

Between lugs  19 mm

Lug to lug length  39.9 mm

Case Thickness  11.8 mm

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.

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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