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King Seiko Vanac 5246-5040 NOS Full set (Sold)


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About Details and then some
Manufacture Seiko King Seiko Vanac
Model reference 52KAW-086 5246-5040
Movement Automatic 28.800 bph
Caliber 5246 5040
Dial Green moss
Case 35x40x11mm Steel
Lugs 18mm
Bracelet Steel XAB580 20cm
Crystal serial # ES0V11GC Hardlex facetted
Timegrapher Amplitude: 123, Beat error: 0,6 Accuracy: -65spd
Jewels 25
Serial # 34xxxx Production: 1973-04
Condition NOS
Service Required Hence the pricepoint
Box & Papers Box Tags

The King Seiko Vanac was manufactured between 1972 and 1974 only, in a number of variations, but all sporting colorful dials, facetted crystals and angular cases. Both Seiko production plants contributed, Suwa with the standard KS 5626 caliber and Daini with the 5246 Special and 5256 calibers that exist in some normal KS but are most common as Vanacs.

A Vanac is basically/exceptionally a KS with added extras: faceted glass, a gold bezel, a high quality bracelet (no folded metal links here) and drilled lugholes (but not all). The Vanac JDM (Japanese Domestic Model), in fact King Seiko, was second only to the Grand Seiko as top of the line Seiko during the 1960’s and 70’s. That, I am happy to state, is very apparent, for even after 42 years of service a KS can run as new to specifications (as most in my collection do). Only one other watch surpasses this performance, and it is a Seiko (of course). Some of the models (but not this one) feature an unique external adjusting screw so that the movement can be adjusted with out removing the movement from the case. That would be the 5626-7000/7010.

There were essentially four movement options in the King Seiko line:

  • 5246A/5246B (1968-1974) - Day/date
  • 5621A/5621B (1969-1974) - Time only
  • 5625A/5625B (1968-1975) - Date
  • 5626A/5626B (1968-1974) - Day/date

These were produced in "A" (unregulated) and "B" (regulated) grades, with some being "Special" movements moving up to the next standard of accuracy - denoted by the third digit 4. All "B" movements were chronometer grade, with many receiving official certification, as noted on the dial.

Some models in the 56KS lineup strongly resembled the Grand Seiko line, especially Daini's legendary Grand Seiko 44GS, which had recently gone out of production.

Seiko produced many 56KS models at first, but it quickly became apparent that high-end watch buyers were more interested in the new quartz watches the company also produced. Sales and production fell dramatically as the 1970's got underway, with the line petering out in 1974 and 1975. But 1976 the King Seiko was no more, with the 56KS cancelled the previous year and the King Seiko 52KS being the last model in production.

The later and now much rarer versions of the KS were in the Vanac line, the funky mod line of the early 1970’s. There is no official explanation as to why they are called Vanac. As one can see, Vanacs are quality watches with a lot of effort put into the bracelets. Other details such as cases, hands and dials are really 70s GS quality. The size is normal 70s at 36-38mm, but most do not wear small due to the chunky cases. The Vanac is not uncommon, but can be very hard to find in good condition. The facetted crystals are often damaged and it can be hard to find replacements for them.

Of course much of what has been said about automatic King Seikos could also be said about automatic Grand Seikos and even some of the Lordmatic (LM) models of the same period. The LM range also used both the 56xx and 52xx movement streams (although lower grade versions, and in the case of the 5606 lower beat), while many Grand Seikos of the period used the 56xx stream. Although the GS 56xx movements were numbered 564x rather than 562x indicating a higher quality and/or level of adjustment, the accuracy it is possible to achieve from 562x KS movements suggests to me that if serviced and adjusted, they are effectively equal to the GS 564x ones. So in this sense, vintage automatic King Seikos may practically be the equivalents of Grand Seikos, but offer better value for money because of the ongoing status of the Grand Seiko label - whereas the KS label is now purely historical.