Steel Belt Platinum Third Generation Butterfly Elegance Makes a Grand Debut .1. TW has recently launched the Omega Butterfly series, featuring an elegant small seconds model with a brand new upgraded 41mm case diameter, synchronized with the official website.Inside, it houses the Omega 8802 Master Chronometer movement, visible through the sapphire crystal case back, showcasing its precise operation and boasting a power reserve of 55 hours.2. The case is made of 316L stainless steel with a dome-shaped sapphire crystal, treated with anti-reflective coating. The dome-shaped dial is adorned with irregularly arranged vertical textures.3. Italian cowhide leather is paired with an original buckle, offering a water resistance of up to 50 meters.