Here is our selection of 18mm lug width replacement watch bands. We have a variety of styles in this size for you to choose from. Whether it is leather, nylon, rubber or metal, we offer everything all in one place. Watches with 18mm watch lugs tend to be dress watches with a more conservative case size. These include Japanese watches made by Seiko and Patek Calatrava with a case size of 32mm to 36mm. The 18mm strap sizes are also now commonly seen on modern ladies watches due to the trend of bigger watches among ladies