Sellier Ciel Blue Leather Watch StrapDream of Heaven This Ciel Blue colourway with its blue and green nuances carries an almost dreamlike quality and will complement any outfit and watch. Sellier is a vegetable tanned leather with a fine natural grain. While delicate to the touch, it has a durable structure perfect for bags and saddles hence the name. Manufactured in Germany, this special strap adheres to the traditional values of the finest French leatherworking and high fashion houses.