332 Flat Stitched Leather Watch Strap a classic look for any watch. Alpine Flat Stitched Leather Watch Bands are available in black or brown and in a variety of sizes. The black watch strap has black stitching, and the brown watch strap has brown stitching. Select the size and colour that best suits your watch. Lug/Buckle Measurements: 10mm/8mm, 12mm/10mm, 14mm/10mm, 16mm/14mm, 18mm/14mm, 20mm/14mm.