18mm 16mm 20mm 74mm / 120mm 142-225mm 2mm. Casio Compatible. 20mm 18mm 22mm 74mm / 120mm 146-229mm 2mm. Your existing strap may have the width stamped into the rear if it is leather. The strap length shown in our chart is the full buckle side length but not including the buckle followed by the hole side length.
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