Check the listing for details. 20mm Leather Rally Strap, Watch Band for Omega Speedmaster. Condition: New with tags. Listed at 23.76 USD. 20mm Leather Rally Strap, Watch Band for Omega SpeedmasterAvailable Colors: White, Blue, Brown, Yellow, Black, Black and White, Black and Blue, Black and Yellow, Black and Orange, Black and Red, Orange, Red, PinkBand Width: 20 mmBuckle Width: 18 mmStrap Material: LeatherPattern: NULLStrap Length: 4.53 inches / 2.76 inches (7.28 inches total, excluding buckle)Optimal Fit: For wrists that measure between 6.57 inches and 8.35 inchesFits the following models: 310.30.42.50.01.002, 310.32.42.50.01.001, 310.60.42.50.99.002, 310.63.42.50.10.001, 311.30.42.30.01.006, 311.32.42.30.04.003, 311.33.42.30.01.002, 321.92.44.52.01.001, 324.33.38.40.04.001, 331.10.42.51.01.001, 331.10.42.51.03.001, 331.22.42.51.01.001, 331.53.42.51.02.001, 331.53.42.51.02.002, 331.90.42.51.04.001, 332.10.41.51.01.001, 332.10.41.51.10.001, 332.10.41.51.11.001, 332.12.41.51.01.001, 331.20.42.51.02.001, 332.10.41.51.03.001, 310.20.42.50.01.001, 321.10.42.50.01.001, 321.10.42.50.04.001, 321.90.44.52.01.001, 310.60.42.50.10.001, 311.30.42.30.99.002, 311.30.44.51.01.002, 311.33.44.51.01.001, 311.30.42.30.03.001, 311.30.42.30.01.005, 311.30.42.30.01.005, 311.30.42.30.01.005, 318.92.45.79.01.001 (If your watch has a different model #, please make sure to verify your band size as per the image on this listing.)