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  1. The Japanese Watch Discussion Forum
    I orderred a 3/4 one in the hopes that it would fit on my 6139 does anyone know if it will fit? The 3/4 band is about 19.05mm and if I'm correct the 6139-600X models were 19mm. I am unsure if thats a big difference or not but either way I'm sure one of my other watches can fit it if the 6139 cant.
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