This eye-catching, fully adjustable watch band is cool, stylish and feels great because it is genuine leather throughout! This band is exactly 2.125" (5.4cm) wide. The base is 5.75" (14.6cm) for the "Small" and 6.5" (16.5cm) for the "Large" size, with a 1" (2.5cm) strap for affixing the watch. For the "Large" size, the leather from the buckle to the watch is about 3.0" (7.6cm) and from the other side of the watch to the end is just over 5.5" (14.0cm). For the "Small" size, the leather from the buckle to the watch is about 2.5" (6.4cm) and from the other side of the watch to the end is about 5.0" (12.7cm). Depending upon the size of your watch, generally choose "Large" if your wrist size is between 7.25-8.5" (18.4-21.6cm) and choose "Small" if your wrist size is between 5-7.25" (12.7-18.4cm) For very large or small watches, adjustments will need to be made. The 1" (2.5cm) straps can be easily trimmed if necessary if your watch isn't quite that wide to make it fit.