The IWC Ingenieur is an instrument of engineering conviction. Since its introduction as an anti-magnetic tool watch in 1955, the Ingenieur has stood for one principle above all else: technical mastery in service of the wearer. The IWC Ingenieur Automatic 40 in titanium (Reference IW328904), relaunched in 2023, represents the purest modern expression of that philosophy — lean, purposeful, and built to a specification that goes far beyond what most sports watches offer.

The 40mm titanium case is lighter than steel yet harder-wearing, with the integrated titanium bracelet completing a mono-material construction that feels both minimalist and substantial. The dark grey dial is a study in functional restraint — no superfluous detail, just clean hour markers, a date window at 3 o'clock, and the sweep of the central seconds hand. Beneath the convex sapphire crystal with anti-reflective coating on both sides, the IWC-manufactured Caliber 32111 automatic movement delivers an extraordinary 120-hour power reserve — five full days of autonomy.

The engineering credentials run deeper than most. A soft-iron inner case provides certified protection against magnetic fields — a specification carried over from the original Ingenieur's raison d'être. The sapphire crystal is additionally secured against displacement by drops in air pressure, a detail that speaks to IWC's aviation and engineering heritage. This is a watch designed to function in environments where most luxury watches would falter.
 

Why This Watch Stands Apart
• IWC-manufactured Caliber 32111 — 120-hour power reserve, 28,800 vph, 21 jewels, 163 components
• Full titanium construction — case and integrated bracelet — lighter and tougher than steel
• Soft-iron inner case — certified anti-magnetic protection, a true engineering specification
• Convex sapphire crystal with dual anti-reflective coating — sapphire secured against air pressure drop
• Clean 40mm case at just 10.8mm thin — sports watch performance in a dress watch profile
• Dark grey dial — the most understated and versatile dial in the Ingenieur range
• Central hacking seconds and date display at 3 o'clock
• 2023 pre-owned example, excellent condition — complete with box and papers

Product Specifications

•  Brand: IWC Schaffhausen
•  Model: IWC Ingenieur Automatic 40
•  Reference: IW328904
•  Year: 2023
•  Condition: Pre-Owned – Excellent
•  Case Material: Titanium
•  Case Diameter: 40 mm
•  Case Thickness: 10.8 mm
•  Lug-to-Lug: 49.6 mm
•  Crystal: Sapphire (Convex, Anti-Reflective Both Sides)
•  Dial: Grey
•  Bracelet: Titanium
Clasp: Folding Clasp
Water Resistance: (Typically 10 ATM)
Movement: Automatic
Calibre: 32111
•  Power Reserve: 120 Hours
•  Frequency: 28,800 vph
•  Jewels: 21

Functions:
• Hours
• Minutes
• Seconds (Hacking)
• Date