And anachronism is the key to manually estimating the production date of your Seiko watch. The chronological error of an anachronism can occur in either direction it can result from something from the past being represented as if it belonged in the present, like an archaism, or it can result from presenting something at a time before it actually appeared, occurred, or existed. In other words, an anachronism is something that occurs out of its proper time. What is anachronism? Basically, it is the utilization of an event, a person, an object, language in a time when that event, person or object was not in existence. That’s when a GPS unit comes in handy! ? Manually estimating the production date of a Seiko involves the element of. You won’t be accounting for wind conditions and at best your estimate may be a few miles off your actual position. Dead reckoning is similar to navigating your way at sea by orientating yourself with the heavenly objects like the sun, moon and the stars. When that happens, I would resort to what I call “dead reckoning” or rough estimation. Or no results at all.Īn important element of investing in a watch like those made by the Seiko.
However, there are circumstances in which the calculator may give you inconclusive or erroneous results. In most cases it should return the correct date of manufacture.
It is the logo of Suwa Seikosha, a Seiko subsidiary which became Seiko Epson later on.In my previous on how to date your Seiko watch, I mentioned the nifty Jayhawk’s Production Date Calculator. Without delving too much into this interesting topic, the following patterns can be observed when it comes to UFOs.įor instance, there have been sightings of UFOs with resist dials and casebacks which obviously can be easily replaced indicating production dates up to 1977. Seiko had to change the markings, but this change wasnt immediate and varied across the markets. In a nutshell, the term water-proof could no longer be used and had to be replaced by water-resistant. Note that on JDM versions, all the words are printed whereas on international dials Seiko is applied.
The 6138A has 21 jewels and the 6138B either 21 or 23 jewels.īelow is an example of a 1972 Yachtman equipped with the 6138B. The 6138 caliber, running at 21,600 beats per hour, has two variations the 6138A and the 6138B with a modified switching mechanism. Lets have a look at the main elements of the UFO, one by one. Its obviously hard to see all the details, but these are helpful to track dial variations.ĭials, bezels, hands all of them can be aftermarket and often its hard to tell the difference.Īnd then there are franken-masters who will replace missing parts with parts from other watches. Taking into account inflation since 1970, this corresponds to 65,000 yen and 870 today. We will discuss the differences between these model numbers later on.īased on this information and all the casebacks I had a look at, I assume that the UFO was produced between 191979. The fast-food company had to withdraw the ad after hundreds of complaints from customers who thought that the commercial released close to Fathers Day cynically exploited childhood bereavement.įor the ease of use, however, we will call them model numbers in this article. In some of his movies he is seen with a Submariner, a Breitling Chronomat or a Tank by Cartier.Īpparently he also enjoyed wearing Japanese timepieces such as the Seiko UFO in Le Magnifique. Vintage Seiko Watch S How To Purchase OneĪfter reading this guide, youll know how to purchase one and avoid getting ripped off. Whats not to like No wonder why the UFOs are so popular everybody wants one for their collection. Some watch aficionados build their entire collections around legendary movements 61. This is the case of JDM dials without water resistance markings, as seen in the pictures below.
Some of the dates contained in the database are approximate but when used with a serial number are accurate enough to narrow down the decade. Vintage Seiko Watch S Serial Number Are Accurate
Please feel free to contact me if you find anything you think is wrong or have information that is not currently in the database. Vintage Seiko Watch S How To Purchase One.