Worldwide. TSAR BOMBA Nucleus femme 02 Mother-of-Pearl Women’s Watch. The case is crafted from stainless steel, and the dial features natural mother-of-pearl: the dial is made of exquisite mother-of-pearl, which displays a rich and soft iridescent sheen under varying light conditions. With a transparent bezel. It is powered by a Swiss Ronda quartz movement. The watch is extremely lightweight (only about 45 grams), making it very comfortable for everyday wear. The Nucleus femme 02 features Grade A luminescent coating, scratch-resistant sapphire crystal glass, and a interchangeable fluororubber strap. Water-resistant to 30 meters (3 ATM).