Brand: Sugess Condition: New with tags Series: Chrono Heritage Model: M1963 (Basic Sea-gull ST1901 movement) M1963X (SUGESS Upgrade Gold Swan Neck Sea-gull ST1901 movement) Function: 12 Hours and seconds Indicator, 30 Minutes Chronograph Features: Column Wheel Chronograph, Blue steel screws and Exhibition Case Back Cover Diameter: 40mm Thickness: 12.5mm Glass Material: Mineral Glass Case Material: 316L Stainless Steel Band: 2 Band, One is Genuine Nylon Nato and the other one is Brown Leather band Buckle: Pin Buckle Movement: Manual winding Caliber: Genuine Seagull ST1901 or Genuine Seagull ST1901 (Gold Swan Neck Version) Jewels: 21 Vibration: 3 Hz (21,600 BPH) Power Reserve: 45 Hours Water Resistant: 5ATM (50 Meters) English Instruction Manual: Yes