Model number: 210.30.42.20.10.001 Movement: automatic winding Band type: Bracelet Material (main): Stainless steel Case size: 42.0mm Case thickness: 13.6mm Caliber: Cal. 8800 Power reserve: 55 hours Function: Date display helium gas escape valve Anti-magnetic Waterproof performance (nominal): 300m Exterior features: rotating bezel See-through back Color: green