The item for sale is a brand new strap. It is made of the finest top quality calf leather with deployment butterfly clasp. It is made for this particular watch OEM quality. It will fit your Omega Seamaster watch which has 18mm lugs.This smooth Strap is made of Italian premium genuine leather with orange color thread stitching and thick 5mm padding with soft waterproof beige nubuck genuine leather lining on the back with sweat resistance for long lasting and durability with extra comfort, nice, classy and expensive look like your original strap. This Leather Strap is Waterproof and great for swimming and it getting wet.It will fit up to an 8-8 1/2 inch wrist with watch polish buckle clasp is made of 316L stainless steel and is interchangeable. It will fit watch with 18mm at lugs. Length:Long part: 115mm (4.6 inch)Short part: 75mm (3 inch)Width of strap at lugs: 18mmWidth of Strap at buckle: 18mmThickness of Strap at Lugs: 5mmThickness of Strap at Buckle: 2.5mmYou will receive complete sets of genuine leather strap with stainless steel buckle and it comes with 2 free spring bars.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. If it does not, please email us so we can assist you further.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. Thank you for your business!