Vintage Watch for womenMovement: CAL.H520Movement model: 1910LDrive: double spring drivePower storage: 42 (hours)Vibration frequency: 21600 (times/hour)Winding method: manual winding.Case diameter: 43-37.5mmCase Material: Carbon FiberBand material: rubberWaterproof depth: 50m domestic waterproofMirror surface: synthetic sapphireBuckle: folding buckleCrown: straight in