Brand: Seestern Condition: New with tags Series: S471 Model: S471.01.O Function: 100M Meters Water Resistant, Date Indicator by date wheel Diameter: 38 mm excluding the crown Thickness: 12mm Lug to Lug: 40.3mm Lug Width: 20mm Glass Material: Sapphire Case Material: 316L Stainless steel Crown: 4 o'clock crown for winding and adjust date, 2 o'clock crown for adjust the inner ring, 2 all are Screw-in Crown Band: Fluoro Rubber Movement: Automatic winding Caliber: 8215 Jewels: 21 Vibration: 3 Hz (21,600 BPH) Power Reserve: 35+ Hours Water Resistant: 10ATM (100 Meters) English Instruction Manual: Yes