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The Tanaka Line

Grand Seiko 61GS 6146-8010

Grand Seiko 6146-8010 Arabesque with a tabletop crystal and steel case
Grand Seiko 61GS · 6146-8010 · February 1970

Precision, ornamented

The Arabesque took a while to win me over. The printed flourish around the raised GS emblem initially felt at odds with the almost ornament-free designs I loved. Handling the watch made that first judgement harder to sustain. The decoration sits within an exceptionally controlled arrangement of case, crystal and dial.

There is an unusual flat band running along the centre fold of the case. Above it, the crystal adds another set of planes to catch the light. Those elements give the familiar Seiko Style outline a more elaborate, but still very deliberate, character.

A tabletop of light

My February 1970 example has the tabletop crystal. Its broad central plane and cut edges keep the dial clear while introducing a separate rhythm of reflections around it. The watch can look composed from one angle and suddenly much more animated with the smallest movement of the wrist.

The watch

Reference6146-8010
My exampleFebruary 1970
ManufactureSuwa Seikosha
Movement6146A · automatic
Beat rate36,000 vibrations/hour · 5 Hz
FunctionsHours, minutes, central seconds, day and date
CaseStainless steel
DialLight dial · Arabesque GS emblem
CrystalTabletop cut
Case width, without crown36.9 mm
Thickness, including crystal12.8 mm

Dimensions measured on this example.

Pyramid crystal · champagne dial

The September 1969 pyramid example corrected another of my preconceptions. In photographs its pointed geometry had seemed rather arbitrary, perhaps even awkward to wear. In the hand the rise is slight, while its symmetrical facets reinforce the reflections from the angular case.

The ridges form a kind of ghost crosshair rotated through 45 degrees. They divide the spaces between groups of markers and establish a remarkably strong bond with the dial below. Add the radiant champagne sunburst and the result is much more coherent, and much harder to put down, than I had imagined.

Grand Seiko 6146-8010 Arabesque with champagne sunburst dial and four pyramid-crystal facets meeting over the centre
Grand Seiko 61GS · 6146-8010 · Pyramid crystal · champagne dial · September 1969
Reference6146-8010
My exampleSeptember 1969
Movement6146A · automatic, day and date
Beat rate36,000 vibrations/hour · 5 Hz
CaseStainless steel
DialChampagne sunburst · Arabesque GS emblem
CrystalPyramid cut
Case width, without crown36.8 mm
Thickness, including crystal13.0 mm

Dimensions measured on this example.

Two crystals, one reference

The pyramid is far subtler in profile than its name suggests. Its real effect lies in the crossed ridges and the way they break up reflected light. Beside the tabletop version, it shows how changing just the crystal can reorganise the visual centre of a watch while leaving its family resemblance entirely intact.

The two Grand Seiko 6146-8010 Arabesque crystals: tabletop above left; pyramid below right
The two Grand Seiko 6146-8010 Arabesque crystals: tabletop above left; pyramid below right

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