Cvstos Challenge Sealiner Limited Edition YC Portofino Chronograph Men’s Watch, Blue Steel Titanium, Cvstos-Challenge-Sealiner-Limited-Edition-YC-Portofino-Chronograph-1

Limited Edition of 50 pieces watch. This watch has a tonneau-shaped case, 53.70mm X 41mm. Open caseback with sapphire crystal. Crystal Sapphire face with none-reflecting coating. Water-resistance 100 meters Polished titanium screws. Exclusive Titanium crown screw-down. Nitril insert. Dial Teck wood base. Teck wood base. Polished and satin-finished metallic dial, PVD treatment, and gold plated. Indexes Super-Luminova treated. Hands Pierced, chromed and Super-Luminova treated. Caliber CVSTOS 357 Chronograph. Functions Hour, minute, subsidiary seconds, central chronograph, date indicator, 5′ 10′ 15′ regata countdown. Power-reserve 42 hours Jewels 25 Rotor Exclusive CVSTOS TUNGSTEN 88 & TITANIUM TECHNOLOGY alloy, blue PVD treatment. Frequency 28,800 vibrations per hour