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seiko 4r37
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  1. The Japanese Watch Discussion Forum
    Just got my first slide rule bezel watch - it's a 4R37-00B0 and I absolutely love the look. However, I had a confusing moment trying to do a kilometers to feet conversion. I wanted to convert 5km to 1000s of ft, so I lined up the KM indicator on the outer bezel with the 50 on the inner bezel...
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