Calf leather band, stainless steel buckle, silver-tone, black, 3.5mm thick. Product Specifications - Length of Item : 7.5 in - Material : Accents : Stainless Steel - Watch Band Material : Leather - Material : Accent Color 1 : Silver Tone - Clasp /Connector : Buckle - Width of Item U/M : in - Watch Band Width : 16 - Watch Band Width U/M : mm - Product Type : Watch - Material : Primary - Color : Black - Height : 3.5 mm How do I know what width watch band I need? To determine the width of the watch band/strap, you can measure the band/strap that you currently have. If you don't have a band or strap, you should measure the width between the case lugs of your watch (see the image below.) Watch bands/straps are measured in millimeters (mm) , so be sure to use a ruler or measuring tape with milli