The item for sale is a brand new genuine Calf leather strap made of the finest high end leather material. It is made to fit Breitling Superocean, Navitimer, Pilot, Hercules, Avenger, Colt, Chronomat , Aerospace, Bentley which has 20mm lugs.This Strap is made of Premium quality genuine Italian Top quality leather with white thread stitching and thick 5mm padding with soft beige nubuck waterproof genuine leather lining on the backside of the strap with sweat resistance for long lasting and durability with extra comfort, nice, classy and expensive look like your original strap. It will fit up to an 8-8 1/2 inch wrist with watch. Length:Long part: 115mm (4.6 inch)Short part: 75mm (3 inch)Width of strap at lugs: 20mmWidth of strap at buckle: 20mmThickness of Strap at Lugs: 5mmThickness of Strap at Buckle: 2.5mmYou will receive complete sets of genuine leather strap with deployment clasp and it comes with 2 free spring bar. Available in 18mm, 19mm, 20mm,22mm, 24mm in black, blue, grey, tan , brown , dark brown colors, they are listed in our store for you to purchase.All Customers Please Note: Be sure to check your watch model number and the lug width opening using the mm side of a ruler and make sure it matches the lug width mentioned in the description of our listing. All Customers Please Read The Following Before Purchasing:Be sure to check our detailed measurement guide below or in the photos/images section of the listing to assist you with purchasing the correct parts for your watch. The guide will show you how to measure the lug width opening of your watch using a ruler, how to check your model number, and assist you with other questions you may have regarding measurement. Thank you for your business!