IWC Ingenieur Big Ingenieur Chronograph Stainless Steel / Silver / Strap

Reference IW3784-05

About this watch

The IWC Big Ingenieur Chronograph IW3784-05 is a stunning example of IWC's ingenuity, combining quality, durability, and aesthetics in a robust and striking stainless steel case with a diameter of 45.50 mm. The silver dial features stick and dot indexes offering a sleek modern look, while the open sapphire case back showcases the intricate IWC movement, inviting admiration from every angle. With a self-winding flyback chronograph movement boasting a 68-hour power reserve and a frequency of 28,800 vibrations per hour, this watch is precision that watch enthusiasts crave. The flyback chronograph function allows for quick resetting of the timer without having to stop it first, perfect for timing multiple events seamlessly. With a water resistance of up to 120 meters, this timepiece is designed to withstand the rigors of daily life. Whether you're in a boardroom meeting or out for a weekend brunch, the IW3784-05 exudes confidence and style.
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Key Features

  • Stainless steel case with diameter of 45.50 mm
  • Silver dial with stick and dot indexes
  • Open sapphire case back showcasing IWC movement
  • Self-winding flyback chronograph movement
  • 68-hour power reserve
  • Water resistance up to 120 meters

Specifications

Brand
IWC
Family
Ingenieur
Model
Big Ingenieur Chronograph Stainless Steel / Silver / Strap
Reference
IW3784-05
Movement
89361
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Flyback
Case
Stainless Steel 45.5mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
120

Current Listings

[WTS] IWC Big Ingenieur Flyback Chronograph – Guilloché Dial – Box & Papers

IWC Big Ingenieur Flyback Chronograph – Guilloché Dial – Box & Papers

IWC - IW378401 · $6,500
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 diameter: 45.5mm
  • Movement: in-house Calibre 89360
Posted at
Mar 11, 2026, 8:53 PM
Active
[WTS] IWC Ingenieur Automatic IW357001 $2,599

IWC Ingenieur Automatic IW357001 $2,599

IWC - IW357001 · $2,599
The IWC Ingenieur IW3570 is a well-crafted, comfortable, and aesthetically pleasing watch that combines a classic design with modern functionality. The watch has balanced proportions, comfortable wearability, and quality finishing make it a strong contender in its category.

  • Condition: pre-owned with minor scratches on bezel
  • Case Size: 40mm diameter
  • Movement: IWC Caliber 35111 (Sellita SW300-1a based)
  • Power Reserve: 42 hours
Posted at
Mar 11, 2026, 1:36 PM
Active
[WTS] IWC Ingenieur Teal ($10,500)

IWC Ingenieur Teal ($10,500)

IWC - IW328903 · $10,500
This IWC Ingenieur Teal features a teal dial in a 40mm case. It's dated March 2024 and comes with additional items.

  • Condition: very good
  • Diameter: 40mm
Posted at
Mar 9, 2026, 2:50 PM
Active
[WTS] IWC Ingenieur Automatic Titanium Silver Dial IW328904

IWC Ingenieur Automatic Titanium Silver Dial IW328904

IWC - IW328904 · $15,000
The IWC Ingenieur Automatic is a high-end mechanical watch with an in-house automatic movement, silver textured grid dial, and integrated stainless steel bracelet.

  • Condition: Excellent overall condition with very light handling wear
  • Movement: Automatic (in-house)
  • Case Size: approximately 40 mm
  • Dial: Silver textured grid dial
Posted at
Mar 1, 2026, 7:57 PM
Active
[WTS] IWC Ingenieur Automatic 42mm

IWC Ingenieur Automatic 42mm

IWC - IW322701 · $4,900
a classic and robust IWC Ingenieur with a timeless design, well maintained and ready to wear.

  • Condition: very good condition
  • Year: 2005
  • Size: 42mm
Posted at
Feb 28, 2026, 7:47 PM
Active
[WTS] 2025 IWC Ingenieur Automatic 40mm Black - IW328901 - Full Set with 8yr IWC warranty

2025 IWC Ingenieur Automatic 40mm Black - IW328901 - Full Set with 8yr IWC warranty

IWC - IW328901 · $8,999
The IWC Ingenieur Automatic 40 is a modern sports watch featuring a return of the Gerald Genta integrated bracelet design, with a unique pattern on the jet black dial and an in-house movement providing a 5 day power reserve.

  • Condition: Very excellent preowned condition
  • Case Size: 40mm
  • Case Material: Stainless steel
  • Movement Power Reserve: 5 days
Posted at
Feb 27, 2026, 10:08 AM
Active