IWC Schaffhausen Pilot’s Watch Timezoner Chronograph 46 mm in diameter stainless steel case Automatic self winding caliber number 89760 manufactured by IWC in the house. The watch is on beautiful leather band (black on the outside and orange on the inside) made by Santos Italian Luxury leather manufacturer. This watch also features extremely easy to adjust time zone complication. Superbly design and execute it in every way.