MWC Mechanical/Quartz Hybrid NATO Pattern Military Pilots Chronograph in Non Reflective Black PVD Finish with Sapphire CrystalSKU Code: CHR21 PVD HY The MWC PVD NATO chronograph is based on the specifications used by leading manufacturers of NATO chronographs, enhanced with several improvements for better operation and visibility. Although designed to meet the needs of military aircrews, it is also ideal for airline and GA pilots. The case size is 45. 5mm, and the chronograph uses a VK68 hybrid movement. Key Features This chronograph includes a 24 hour (Military Time) sub