It is far rarer to find an automatic Seamaster from 1984 than the quartz versions – Omega sold a lot more quartz watches then.  Model reference 366.0845.

HOW DO WE DATE THIS WATCH?

From the serial number on the movement we can accurately date this watch to being made in 1984.  This Seamaster model was in production for a while – it was launched in 1977 according to Omega’s own website.

CONDITION

We like quartz watches here, but there are collectors who prefer a mechanical movement. The same was true in 1984, so Omega did make mechanical watches but they were more expensive and sold in lower numbers.  This watch has the automatic calibre 1020 movement, with micrometer adjustment and quick set date.  The day window is in English only and can not be quick set.  The Omega logo on the dial has some slight discolouration, but the rest of the dial is good and is is sitting behind the original crystal with the Ω logo in the centre.  The original bracelet, numbered 1502, is quite long and our sister website, SpareLinks.com, may have extra links if required.  The watch is signed on the dial, case, movement, crown, crystal, 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  37.7 mm

Width without crown  35.1 mm

Between lugs  11 mm

Lug to lug length  39.9 mm

Case Thickness  10.7 mm

Bracelet will fit a maximum wrist size of 190 mm.  The bracelet can be sized for you if you give us your wrist size when placing the order.

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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