Movement Number: 8L45 Winding Type: Mechanical automatic winding (with manual winding function) Accuracy: Daily deviation ±10 seconds Power Reserve: Approximately 72 hours when fully wound Number of jewels: 35 Vibration frequency: 28,800 vibrations per hour (8 vibrations per second) Seconds hand stop function: Calendar (date) display function Case material: Stainless steel; Case back: Stainless steel and sapphire crystal Case dimensions: Thickness: 14.3 millimetres Width: 41.0 millimetres Height: 45.1 millimetres Glass material: Box-shaped sapphire Glass coating: Anti-reflective coating on the inner side Luminescence: Yes (hands and hour markers) Buckle: One-push double-opening buckle Wrist circumference (maximum): 195.0 mm Water resistance: Enhanced water resistance for daily use (10 ATM) Magnetic resistance: Yes Weight: 192.0 g Other features Screw-down crown Screw-down case back