Authentic IWC Portofino model IW357413. Polished stainless steel case with polished and brushed bracelet band, deployment clasp with push button. Smooth bezel on blue dial featuring diamond/roman numeral hour markers and minute markers around outer rim. Polished silver tone hands set against blue background. Automatic movement powered by Calibre 35100 with 50 hours power reserve. Functions: Hour, Minute, Second, Power Reserve. Equipped with push-pull crown and scratch-resistant sapphire crystal. Round case shape measures 34mm in diameter and has a thickness of 8.6mm. Solid solid back. Water resistant to 30 meters (100 feet). Comes with a 2 year WatchMaxx warranty.