Case Material: Black PVD plated stainless steel case Case Diamter: 43mm Bezel: Unidirectional stainless steel ratcheting bezel (12 hour timing) Caseback: Black PVD plated stainless steel screw in case back with jet property schematic Crystal: A/R coated sapphire crystal Crown: Double gasket screw down threaded crown Water Resistance: 200M / 20 ATM Movement: Multi-jewel Swiss quartz movement Battery Life: 120 monts Bracelet: Black PVD coated solid link stainless steel bracelet with fold over security clasp and 1/4 inch extender for use over a flight suit.