IWC Ingenieur Big Ingenieur Chronograph Steel / Black / Strap

Reference IW3784-01

IWC Big Ingenieur Chronograph Steel / Black / Strap

About this watch

The IWC Big Ingenieur Chronograph, a stunning representation of IWC's commitment to precision engineering and craftsmanship. This watch is a statement piece that commands attention with its bold black dial and striking stainless steel case. The 45.50 mm round case is robust yet refined, perfectly suited for both casual and formal occasions. Featuring sapphire glass, the watch is resistant to scratches, ensuring it maintains its pristine look over time. The open case back allows a peek into the intricate workings of the IWC caliber 89360 movement, engineered to perfection with a power reserve of 68 hours and 40 jewels. The chronograph functionality, complete with a flyback feature, provides precise measurements for any activity. With a water resistance of 120 meters, this watch is capable of handling splashes and can even accompany you on snorkeling adventures. Its unique design, robust features, and comfortable fit make it a worthy investment for those who appreciate fine horology.

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MSRP: $12,400

Market Price: $5,430

Key Features

IWC caliber 89360 automatic movement
Chronograph functionality with flyback feature
Water resistance up to 120 meters
Sapphire glass crystal
45.50 mm stainless steel case
Black dial with white sub-dials
Date display and small seconds sub-dial

Specifications

Brand

IWC

Family

Ingenieur

Model

Big Ingenieur Chronograph Steel / Black / Strap

Reference

IW3784-01

Movement

89360

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph, Flyback

Case

Stainless Steel 45.5mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

120

Current Listings

IWC Ingenieur 40mm Aqua Dial 2025 Complete Kit

IWC - IW328903 · $9,500

This IWC Ingenieur features a 40mm Aqua Dial and has a thin 10.7mm case with a 120 hour power reserve.

Condition: Incredible Preowned Condition
Case thickness: 10.7mm
Diameter: 40mm
Power reserve: 120 hours

Posted at

Dec 11, 2025, 9:33 AM

Active

View listing on r/WatchExchange

IWC Micro Adjust Clasp for Ingenieur 40 & Others

IWC - IW32890x · $375

Additional details on a preowned IWC clasp for the Ingenieur 40 and other models, allowing micro adjustment instead of the stock butterfly clasp.

Condition: Excellent condition
Compatible Watches: Not specified, but confirmed compatible with 40mm IW32890x model Ingenieur. Cross reference required for other models.

Posted at

Dec 11, 2025, 9:28 AM

Active

View listing on r/WatchExchange

IWC Ingenieur Automatic IW357001 $2,699

IWC - IW357001 · $2,699

The IWC Ingenieur IW3570 is a well-crafted watch that combines classic design with modern functionality. It has balanced proportions and quality finishing, making it a strong contender in its category.

Condition: Pre-owned with minor scratches on polished bezel
Case Size: 40mm diameter
Case Thickness: 10.3mm
Lug Width: 20mm

Posted at

Dec 10, 2025, 12:49 PM

Active

View listing on r/WatchExchange