Original Invicta 21403 Silicone Black 18mm watch strapThis watch strap from Invicta fits on the watch model 21403. Please click on Alternatives to view all alternative straps. The lug width of this watch strap is 18mm, the widest part of the strap has a width of 29mm. This watch strap doesn\'t have a straight but specific shaped/curved end. This means that we cannot guarantee that this strap will also fit on other watch models. We advise to contact us in case of doubts. Please read the Product features for more information about this strap.