Case material: Steel; Charge: Automatic; Conditions: New Year : 1998; Presentation condition : With dealer guarantee ; Price on request Gmtbroker Reference: nessuna Sea-Dweller 16600 - Full black steel, unidirectional rotative bezel, black dial, 3 central hands, screw-in crown, sapphire glas, date, helium valve, automatic certified chronometer movement (COSC), 3135 caliber.