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The Tanaka Line

King Seiko 56KS 5625-7060

King Seiko Chronometer 5625-7060: a brushed monocoque case, polished bezel and solid black markers give this 56KS a remarkably contemporary presence.
King Seiko 56KS · 5625-7060 · May 1970

Brushed, rather than subdued

The 7060 is one of those watches that slowly gets under my skin. The matte effect of its brushed case, the polished bezel and the solid black markers establish a particularly clear set of contrasts. Even now, the whole feels remarkably contemporary.

The case is more rounded than the strict early Seiko Style vocabulary might lead you to expect. Those curves add complexity, but the controlled surface treatment keeps the composition calm.

The watch

Reference5625-7060
My exampleMay 1970
FamilyKing Seiko · 56KS
ManufactureSuwa Seikosha
Movement5625 · automatic, date
Beat rate28,800 vibrations/hour · 4 Hz
CaseStainless steel · monocoque
Case width, without crown36.8 mm
Thickness, including crystal10.1 mm

Dimensions measured on this example.

Beside the 5245-6000

I once described a kinship between this 5625-7060 and the smaller Daini-built 5245-6000. Both are Chronometers in monocoque cases, but what draws me in is the expression found in their curved, brushed surfaces. The 56 keeps a polished bezel as a crisp boundary around that softer case.

Their dials pull in different directions too: stark black markers and a sunburst finish on the 56, polished markers with black inlays and a linen texture on the 52. Side by side, the resemblance makes their individual characters easier to see.

King Seiko Chronometer 5625-7060 on the left beside King Seiko Special 5245-6000 on the right
King Seiko 5625-7060 on the left; 5245-6000 on the right

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Watch details