The item for sale is a brand new genuine?leather strap. It is made of the finest?Quality?calf leather material and comes with double butterfly deployment clasp.?It will fit your Omega Speedmaster 145.012; 145.022 watch which has?20mm lugs.This Strap is made of genuine premium Smooth Italian leather with?black thread stitching and thick 4.5mm padding with soft?beige nubuck genuine waterproof leather lining on the back with sweat resistance and comfort, nice, classy and expensive look for long lasting and durability and make it look just like?your original strap on your watch. It will fit up to an 8-8 1/2 inch wrist. Double deployment butterfly?buckle is thick and high polished. It is made of 316L stainless steel and is interchangeable. Length: Long part: 115mm Short part: 75mm Width of straps: 18/18mm Available in 18mm, 19mm, 20mm, 22mm, 24mm in black, blue,?grey, orange, dark brown, light brown color, they are listed in our store for you to purchase. This strap is specially made for high end watches and are sold in retail?stores for $150 and up. You will receive complete sets of genuine leather strap with SS deployment clasp in black color with 2 free spring bars. All Customers Please Note: Be sure to check your watch model number, lug width opening,?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. Many watches appear the same but may be different in case size or year model.Thank you for your business!