Brand new Genuine Tag Heuer deployment clasp Model #FC5062, complete in packaging with spring bar and factory stickers. Perfect for Aquaracer, Carrera, Monaco, Formula 1, Autavia, and many other models with leather or rubber straps. 18mm at buckle, fits most 20mm, 21mm, and 21.5mm Tag Heuer straps. Ships quick, any questions feel free to ask. Thank you