Siena Brown Boxed Stitch Leather Watch StrapWork Forces.. With rugged hues and the clean white box stitch, this leather watch strap represents a hands on approach that makes no difference between blue and white collar work. Handmade in Italy, this fine piece satisfies both through its visual style and tactile qualities. Length: Short: 10,5 + 6,5 cm (4. 13 + 2. 56 in.) Regular: 12 + 7,5 cm (4. 72 + 2. 95 in.) Long: 13 + 8,5 cm (5. 12 + 3. 35 in.) Buckle sizes: Lug width 18, 19, 20, 21 mm = 16 mm