The IWC Ingenieur Big pays particular attention to the best feature. In the case of 45.5 mm in diameter is housed 51112, with 44 rubies, which ensures a week of reserve power. This is one of the most effective engineering units for a wristwatch.

A soft iron cage drowned outlets on steel offers adequate protection against magnetic fields. The dial anthracite, engraved in guilloché, presents index finger and Arabic numerals used and luminescent. The date is positioned to 6 hours, while the energy level is up to 3.