Automatic El Primero Zenith 4021 Movement - Power Reserve Indicator above 6 O'Clock. Stainless steel Case 37mm factory set with diamonds on the bezel, unworn original Croco leather strap fitted with original stainless steel deployant buckle. Exhibition Sapphire Crystal Caseback. Scratch Resistant Sapphire Crystal, 30 Meters / 100 Feet Water Resistant. Box & Cert Undated.