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Based on the dial and the dial and the caseback I would say its a 011 with a 013 crown. Regarding the date wheel I have no idea why it didnt come with the kanji day wheel.

 

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Perhaps its this International Version? !!.......

From yeomanseiko.com >>>> Seiko Tuna 1000m S23619J1

I think this is the answer. First I ever heard of this version. Thanks for the link!