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The Tanaka Line

Grand Seiko 61GS 6146-8009

Cap-gold Grand Seiko 6146-8009 export model with a day-date display, photographed on the wrist
Grand Seiko 61GS · 6146-8009 · July 1968

The inconspicuous exception

At first glance this could pass for an ordinary cap-gold 6146. The July 1968 export reference is an unusually discreet rarity, with much of its interest hidden behind its weathered exterior.

Amnesty for a life well lived

This example has been used, and its gold-covered case does little to disguise that. I have no wish to make its appeal depend on pretending otherwise. The wear gives an unexpectedly rugged character to a design usually admired for its immaculate surfaces.

It has also been one of my most satisfying watches to wear. During one extended spell I recorded less than five seconds of drift over two weeks. That experience made it an easy choice to put on in the morning, and a useful reminder that a weathered exterior need not tell the whole story.

The watch

Reference6146-8009
My exampleJuly 1968
Movement originSuwa Seikosha
Movement6146A · automatic
Beat rate36,000 vibrations/hour · 5 Hz
FunctionsHours, minutes, central seconds, day and date
CaseCap gold
DialLight dial · day and date
Case width, without crown36.9 mm
Thickness, including crystal12.1 mm

Dimensions measured on this example.

Suwa on the dial, Daini within

The 61GS belongs to Suwa, and the dial carries its familiar emblem. Inside this July 1968 example, however, both the rotor and the caseback bear the Daini Seikosha name. Seeing those two inscriptions together is what makes this otherwise unassuming watch so intriguing.

In September 2021, I noted another July 1968 6146-8009 shown by Japanese collector @tokyo_watchs. More surprising still was the steel 6146-8000 he showed next: an April 1968 example, complete with its original set, carrying the same Daini inscriptions.

That steel watch changed the question. These markings were not confined to the -8009 export reference. The familiar division between Suwa and Daini suddenly looked less tidy, revealed by details that would ordinarily remain out of sight.

The inner caseback stamp, with reference 6146-8009
The inner caseback stamp, with reference 6146-8009
The Daini Seikosha inscription on the rotor
The Daini Seikosha inscription on the rotor

Service photographs: @m.james.watches

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