Mondaine MS1 41mm White Swiss Movement Water Resistant 2-Year Warranty Elegant Design```html Product Highlights The "Essence" series case is made using environmentally friendly renewable materials, based on castor oil, which is said to have been used by Cleopatra. The strap is made from TPU (thermoplastic polyurethane) material based on renewable resources. The quick release feature allows for easy strap changes without tools. The "Mondaine" watch was developed in 1932 when Hans Hilfiker, who joined SBB (Swiss Federal Railways) as an