Brand: SugessCondition: New with tagsSeries: Chrono HeritageModel: S419BEFunction: 12 Hours and seconds Indicator, 30 Minutes Chronograph (The 6:00 subdial is often simply listed as a 12 hour subdial, causing confusion about the functionality. This is not a 12 hour totalizer subdial for the chronograph complication. It is a 12 hour hand that matches the main central hour hand.)Features: Column Wheel Chronograph, Blue steel screws and Exhibition Case Back Cover Diameter: 37mm Lug to Lug: 47mmThickness: 14.5mm Glass Material: Dome Sapphire CrystalCase Material: 316L Stainless SteelBand: Genuine Nylon Leather Movement: Manual windingCaliber: Genuine Seagull ST1902Jewels: 21Vibration: 3 Hz (21,600 BPH)Power Reserve: 45 HoursWater Resistant: 5ATM (50 Meters) English Instruction Manual: Yes