Brand: Seestern Condition: New with tags Series: S434-2 Model: S434-2.10 Function: Domed Sapphire Crystal, BGW9 Lume, Lumed Ceramic Bezel Insert, Date Diameter: 39.0 mm Thickness: 10mm (13mm with glass) Glass Material: Domed Sapphire Crystal Case Material: 316L Stainless Steel Buckle: Quick adjustable Buckle Band: 316L Stainless Steel Movement: Automatic winding Caliber: Genuine NH35A Jewels: 21 Vibration: 3 Hz (21,600 BPH) Power Reserve: 41 Hours Water Resistant: 20ATM (200 Meters) English Instruction Manual: Yes