18mm for 18/20, 18/21, 18/22 straps. Some come with the blue tape and some without.
Clasp DO NOT come with push pin as shown in photo. Brushed Stainless steel Deployment Buckle.18mm at the extremity of the strap (buckle). Deployment buckle will fit all IWC with: 18/20. These charges are the buyers responsibility. The item "IWC 18mm Deployment Deployant UNROC Clasp Buckle STAINLESS STEEL BRAND NEW" is in sale since Monday, June 29, 2015. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Watch Accessories\Wristwatch Bands". The seller is "rok0_2" and is located in Bernardsville, New Jersey. This item can be shipped to United States, Canada, United Kingdom, China, Mexico, Germany, Japan, France, Australia, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Bahamas, Israel, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.