19 mm Black Replacement Compatible with oil leather watchband / watch strap / watch band, which can be use to replace watch straps on smart watches and fine watches. Please confirm the size of the lugs and strap on your current before ordering. 19mm wide where it connects to the watch. (16mm at the buckle). Thickness is 5.25mm. Total length of both leather pieces is 7.75" / 197mm (excludes the buckle). New set of spring bars are included. Nickel free hypoallergenic silver buckle is installed. Gold, Rose Gold, or Black buckles are available by contacting us after the order is placed. Fits Many Smart Watches: Check your smart watch manual for the proper size needed.