334 Flat Stitched Leather Watch Strap a classic look for any watch. This flat, stitched watch straps is genuine leather. This strap is available in black, brown and white. Select the size and colour that best suits your watch. Lug/Buckle Measurements: 10mm/8mm, 12mm/10mm, 14mm/12mm, 16mm/14mm, 18mm/16mm.