SPECIFICATIONUpper Layer: Alligator-Embossed Italian CalfskinLower Layer: Softglove leather liningWater resistance: Splash ResistantWarranty: 12 months OPTIONAL DEPLOYMENT CLASPSUsing the menu above, you can optionally add a Hirsch Sport deployment clasp to your purchase (for compatible straps) in a either silver or gold tone. Additional costs as indicated. A deployment clasp adds quick-release functionality to your watch strap for added convenience. The Strap Size Guide below lists the currently-available dimensions of this strap. STRAP SIZE GUIDE Watch End Buckle End Thickness(Watch End) Thickness(Buckle End) Length 12mm 10mm 2.7mm 2.0mm M, L 13mm 12mm 2.9mm 2.0mm M 14mm 12mm 3.1mm 2.0mm M, L 15mm 14mm 3.3mm 2.0mm M 16mm 14mm 3.5mm 2.5mm M, L 17mm 16mm 3.8mm 2.5mm M, L 18mm 16mm 4.0mm 2.5mm S, M, L, XL 19mm 16mm 4.2mm 2.5mm L 19mm 18mm 3.2mm 2.5mm M 19mm 18mm 4.2mm 2.5mm L 20mm 18mm 4.4mm 2.5mm S, M, L, XL 21mm 18mm 4.6mm 2.5mm L 22mm 20mm 4.9mm 3.0mm M, L, XL 23mm 20mm 5.1mm 3.0mm L 24mm 22mm 5.3mm 3.0mm M, L, XL 26mm 24mm 5.7mm 3.5mm L 28mm 26mm 6.1mm 3.5mm L Length 'S' is equal to 100.5mm/59.5mm (160mm overall)Length 'M' is equal to 110mm/70mm (180mm overall) Length 'L' is equal to 120mm/80mm (200mm overall) Length 'XL' is equal to 120mm/100mm (220mm overall) WHAT'S INCLUDED ×1 Hirsch Duke watch strap ×1 Hirsch H-Standard Buckle ×2 Loops/Keepers ×2 Quick-Release Spring Bars Hirsch Duke Alligator-Embossed Leather Watch Strap in Black This Hirsch strap features an integrated quick-release spring-bar, allowing you to quickly and easily swap it out without the need for additional tools. Click here if you'd prefer this strap equipped with a pair of standard spring bars instead. One of the mainstays of the Hirsch portfolio, the Duke is a versatile strap that has remained a firm favourite among our customers over the years, with its refined alligator-style emboss, high-quality Italian calfskin construction and superb fit and finish, all at a price that offers peerless value for money. An ideal accompaniment to your favourite wristwatch, as a secondary or replacement strap. View our full collection of 15mm straps here. Please note: Any watches pictured are for illustration purposes only and are not included. Due to the hand-made nature of these products, straps may vary slightly from those pictured.