Original Swatch (alt.) 51643.03 Leather Brown 19mm watch strapThis watch strap from Swatch (alt.) fits on the watch model 51643.03. Please click on Alternatives to view all alternative straps. The lug width of this watch strap is 19mm, the middle of the strap has a width of 19mm. 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.