IWC Ingenieur Ingenieur SL Automatic Stainless Steel / Champagne / Bracelet

Reference IW3505-04

About this watch

The IWC IW3505-04 Ingenieur SL Automatic is a masterpiece of luxury watchmaking, combining precision engineering with exquisite design. Founded in 1868, IWC Schaffhausen has been pushing boundaries while staying true to its roots. The sleek champagne-colored dial exudes elegance, making it suitable for both formal and casual occasions. The round stainless-steel case feels robust yet lightweight on the wrist, a perfect balance of strength and sophistication. At the core of this timepiece is the IWC caliber 375, a self-winding movement based on the renowned ETA 2892, promising accuracy and reliability. With its impressive water resistance of up to 120 meters and sapphire glass protection, this watch can handle any situation with ease. The adjustable bracelet ensures a snug fit without feeling constricting, making it perfect for professionals, collectors, or anyone looking to add a touch of elegance to their watch collection.
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Key Features

  • IWC caliber 375 self-winding movement
  • Sapphire glass protection
  • 120m water resistance
  • Adjustable stainless steel bracelet
  • Champagne-colored dial with stick and dot indexes

Specifications

Brand
IWC
Family
Ingenieur
Model
Ingenieur SL Automatic Stainless Steel / Champagne / Bracelet
Reference
IW3505-04
Movement
375
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
Stainless Steel 34mm
Crystal
Sapphire
Water Resistance
120

Current Listings

[WTS] IWC Ingenieur Automatic IW357001 $2,650

IWC Ingenieur Automatic IW357001 $2,650

IWC - IW357001 · $2,650
This previous generation IWC Ingenieur IW3570 is a well-crafted, comfortable, and aesthetically pleasing watch that combines a classic design with modern functionality. It features a date complication and has balanced proportions for comfortable wearability.

  • Condition: Pre-owned with minor scratches on polished bezel
  • Case size: 40mm diameter
  • Movement: IWC Caliber 35111 (Sellita SW300-1a based)
  • Power reserve: 42 hours
Posted at
Jan 16, 2026, 12:10 PM
Active
[WTS] IWC Ingenieur Automatic 40 Full Steel Black Dial 2017 (Full-Set/Unpolished)

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

IWC - IW323902 · $5,475
  • Condition: Excellent overall condition with only light, honest signs of wear
  • Size: 40mm diameter
  • Water Resistance: 30 meters (3 ATM)
  • Bracelet Links: complete set of links
Posted at
Jan 13, 2026, 5:18 PM
Active
[WTS]: IWC Ingenieur 40 Blue Dial IW328907 + EXTRAS (adjustable clasp, links)

: IWC Ingenieur 40 Blue Dial IW328907 + EXTRAS (adjustable clasp, links)

IWC - IW328907 · $9,500
This IWC Ingenieur Automatic 40mm Blue Dial features an IWC 32111 Calibre Movement, complete with original boxes and papers.

  • Condition: Excellent plus
  • Movement: IWC 32111 Calibre Movement
  • Clasp: MK XX micro-adjust clasp ($460 value from IWC)
  • Extras: 2 extra links for the Ingenieur
Posted at
Jan 11, 2026, 1:41 PM
Active
[WTS] IWC Ingenieur 40 Homage

IWC Ingenieur 40 Homage

IWC - Ingenieur 40 · $175
This IWC Ingenieur 40mm is a 'Seiko mod' with an NH35 movement, featuring extra links and nearly no signs of wear.

  • Condition: like new
  • Movement: NH35
  • Case size: 40mm
Posted at
Jan 9, 2026, 2:56 PM
Active
[WTS] IWC Ingenieur Automatic 40 IW328903 Steel Green Grid Dial Box Papers 2025

IWC Ingenieur Automatic 40 IW328903 Steel Green Grid Dial Box Papers 2025

IWC - IW328903 · $9,625
A newer IWC Ingenieur model featuring a beautiful aqua-green grid dial, applied indices, and a color-matched two-digit date wheel. It has a 40mm stainless steel case and an automatic Calibre 32111 movement with a 120-hour power reserve.

  • Condition: Excellent condition with light wear on the case and bracelet
  • Case size: 40mm
  • Material: stainless steel
Posted at
Jan 8, 2026, 8:47 AM
Active
[WTS] IWC Ingenieur 3521 Fullset - $7500

IWC Ingenieur 3521 Fullset - $7500

IWC - 3521-01 · $7,500
This listing is for an IWC Ingenieur 3521 watch, which comes with its original box and papers. The watch features a 34mm diameter T dial and hands.

  • Condition: unpolished original T dial
  • Diameter: 34mm
Posted at
Jan 8, 2026, 5:37 AM
Active
[WTS] IWC Ingenieur Automatic 40 Full Steel Black Dial 2017 (Full-Set/Unpolished)

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

IWC - IW323902 · $5,475
This all-original IWC Ingénieur Ref. IW323902 is a modern classic offered in never polished stainless steel and features a black dial with strong legibility and technical aesthetic.

  • Condition: Excellent overall condition, light honest signs of wear
  • Movement Service History: professionally serviced in December 2025
  • Depth Rating: 30m water resistance
  • Bracelet Adjustment Pins: includes original adjustment pins
Posted at
Jan 5, 2026, 6:35 AM
Active
[WTS] IWC Ingenieur Aqua Green IW328903

IWC Ingenieur Aqua Green IW328903

IWC - IW328903 · $8,850
This 40mm Ingenieur features an Aqua Green dial and is in excellent condition, with a flawless crown and glass.

  • Condition: 9/10, minor hairlines on middle links
  • Warranty expiration date: September 3, 2032
  • Accessories included: original box, papers, warranty card
Posted at
Jan 3, 2026, 3:25 PM
Active
IWC Ingenieur Automatic  - IW323902 - Black - Stainless Steel - 39mm - Mint

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
Active