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 Big Ingenieur Chronograph - Guilloché Dial - Box & Papers

IWC - IW378401 · $6,500

This timepiece combines heavy-duty engineering with fine watchmaking. A watch for those who want a true chronograph tool with the elegance to double as a statement piece — robust for everyday use, refined for evenings.

Case size: 45.5mm
Movement: Calibre 89360
Power reserve: 68 hours

Posted at

Feb 15, 2026, 1:12 PM

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IWC Ingenieur Ref. 323904 – 40mm White Dial w/ Integrated Bracelet – Full Kit

IWC - 323904 · $4,895

IWC Ingenieur Ref. 323904 is a 40mm integrated bracelet sports watch that carries the DNA of the legendary Gérald Genta-designed IWC Ingenieur SL of the 1970s.

Condition: Pre-owned with scratches and small dings consistent with a decade of wear
Case diameter: 40mm
Thickness: 10mm
Water resistance: 120m

Posted at

Feb 12, 2026, 3:27 PM

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IWC Ingenieur Automatic IW357001 $2,650

IWC - IW357001 · $2,650

The IWC Ingenieur IW3570 is a well-crafted watch that combines classic design with modern functionality. It has balanced proportions, comfortable wearability, and quality finishing. The watch draws heavily from the original 1950s Ingenieur ref. 666.

Condition: Pre-owned with some scratches on the polished bezel but no dings or dents
Movement: IWC Caliber 35111 (Sellita SW300-1a based, built to IWC specs)
Power reserve: 42 hours
Case size: 40mm diameter

Posted at

Feb 10, 2026, 11:12 AM

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BNIB IWC Ingenieur 40 Blue Dial - Bought from AD 2025, All Boxes/Papers/8yr IWC Warranty

IWC - Ingenieur 40 · $11,000

This IWC Ingenieur 40 features a stunning steel blue dial in a checkerboard pattern and has a fully tool-less design for re-sizing the bracelet. It's beautifully finished, comparable to Jaeger-LeCoultre.

Condition: Brand new in box
Purchase year: 2025
Origin: Authorized Dealer

Posted at

Feb 9, 2026, 6:29 PM

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IWC Ingenieur Automatic 40 Full Steel Black Dial 2017 (Full-Set/Unpolished)

IWC - IW323902 · $5,475

This IWC Ingenieur Automatic 40 is a full steel black dial watch from 2017. It features a stainless steel case and bracelet, a professional serviced movement, and a pressure tested to 3 ATM (30 meters). The watch comes as a complete set with original boxes, booklets, and bracelet adjustment pins.

Condition: Excellent overall condition with only light, honest signs of wear
Size: 40mm diameter
Year: 2017
Water Resistance: 30m (3 ATM)

Posted at

Feb 6, 2026, 3:59 PM

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IWC Ingenieur Automatic - IW323902 - Black - Stainless Steel - 39mm - Mint

IWC - IW323902 · $5,495

A pre-owned IWC Ingenieur Automatic in excellent condition, featuring a 39mm black stainless steel case and automatic movement. The watch is accompanied by its original box set, instruction manual, warranty card, and OEM rubber strap.

Condition: Pre-Owned - Grade: Mint
Case size: 39mm diameter
Bracelet type: Stainless Steel
Dial: Black

Posted at

Apr 8, 2025, 12:56 AM

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IWC Ingenieur Automatic - 40mm - Black Dial - IW328901 ( unworn / 2025 )

IWC - IW328901 · $9,995

This IWC Ingenieur Automatic watch features a 40mm stainless steel case and black dial, coming with all original boxes and papers.

Condition: unworn
Case size: 40mm diameter
Movement: IWC 32111 Calibre

Posted at

Mar 28, 2025, 3:41 PM

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1980's IWC Ingenieur Ref. IW3506 with Box

IWC - IW3506 · $5,950

The IWC Ingenieur Ref. IW3506 is a vintage watch originally launched in 1955 as an anti-magnetic timepiece for engineers, featuring a soft iron inner case and IWC's Caliber 852. The Reference 3506 was introduced in the mid-1980s, offering a more wearable size with refined details like gold hour markers and a graph paper textured dial.

Condition: Vintage-Good
Movement: Automatic
Case Width: 35mm diameter
Strap Length: 7.50 inches

Posted at

Mar 27, 2025, 1:34 PM

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