IWC Ingenieur Ingenieur SL Automatic Stainless Steel / Yellow Gold / White / Bracelet

Reference IW3505-06

IWC Ingenieur SL Automatic Stainless Steel / Yellow Gold / White / Bracelet

About this watch

The IWC Ingenieur SL Automatic is a luxury watch that beautifully marries tradition with innovation. Its stunning combination of stainless steel and yellow gold provides both durability and sophistication. The round case measures 34.00 mm in diameter and stands at a slim 8.60 mm in height, making it suitable for various wrist sizes. A classic white dial adorned with stick and dot indexes offers a clean and crisp look, while the simplicity of the design allows for easy reading. The IWC caliber 375, a self-winding movement, boasts a 42-hour power reserve and is based on the reliable ETA 2892. This watch is not only a functional accessory but also a piece of history, representing an era of exquisite craftsmanship.

Buy Now on Jomashop

This is an affiliate link

Key Features

Stainless Steel and Yellow Gold Case
IWC Caliber 375 Self-Winding Movement
42-Hour Power Reserve
120-Meter Water Resistance
Sapphire Glass Crystal
Date Feature at 3 o'clock Position
Timeless Classic Design

Specifications

Brand

IWC

Family

Ingenieur

Model

Ingenieur SL Automatic Stainless Steel / Yellow Gold / White / Bracelet

Reference

IW3505-06

Movement

375

Movement Features

Hours, Minutes, Seconds
Date

Case

34mm

Dial Color

White

Crystal

Sapphire

Water Resistance

120

Current Listings

IWC Ingenieur Automatic 42 – Full Ceramic – IW338903 – Complete Set

IWC - IW338903 · $17,500

The IWC Ingenieur Automatic 42 Ceramic features a full black ceramic case and integrated bracelet, offering exceptional scratch resistance while keeping the watch lightweight and comfortable on the wrist. The textured grid dial, bold indices, and signature bezel design give it a strong, technical presence that stands apart from typical steel sports models. This modern take on the Ingenieur line blends Gérald Genta-inspired design with ceramic materials.

Condition: Mint all around condition
Case material: full black ceramic
Bracelet type: integrated ceramic
Movement: IWC 82110 automatic in-house movement

Posted at

May 2, 2026, 2:36 PM

Active

View listing on r/WatchExchange

IWC Ingenieur Automatic 40mm Black IW328901 ( excellent / 2025 / box and papers )

IWC - IW328901 · $9,950

A pre-owned IWC Ingenieur Automatic 40mm Black Dial watch in excellent condition, complete with all original boxes, papers, and accessories.

Condition: Excellent
Case size: 40mm

Posted at

May 1, 2026, 2:03 PM

Active

View listing on r/WatchExchange

IWC Ingenieur Automatic 40 IW328904 Titanium Complete

IWC - IW328904 · $14,250

The IWC Ingenieur Automatic 40 is a masterclass in engineering-driven design, blending heritage and innovation into one of the most compelling modern luxury sports watches. Crafted from titanium, the 40mm case and integrated bracelet deliver exceptional comfort while maintaining a bold presence on the wrist.

Condition: Mint condition
Movement: Caliber 32111 automatic
Power reserve: 120 hours
Case material: Titanium

Posted at

May 1, 2026, 12:02 PM

Active

View listing on r/WatchExchange

IWC Ingenieur Chronograph Limited Rudolph Caracciola Racing Edition Ref IW380702

IWC - IW380702 · $3,450

A limited edition IWC Ingenieur Chronograph, released in honor of Rudolf Caracciola, featuring a gray sunburst dial and in-house chronograph caliber 69370 movement.

Condition: Super clean, light wear
Movement: In house automatic chronograph caliber 69370
Case Size: 42MM stainless case, unpolished
Diameter: 40mm diameter

Posted at

Apr 27, 2026, 9:26 PM

Active

View listing on r/WatchExchange

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

IWC - IW378401 · $6,500

A timepiece that combines heavy-duty engineering with fine watchmaking, featuring a guilloché dial and flyback chronograph functionality.

Case size: 45.5mm diameter
Power reserve: 68h
Movement type: in-house Calibre 89360

Posted at

Apr 25, 2026, 3:14 PM

Active

View listing on r/WatchExchange

IWC Ingenieur Automatic 40mm Titanium IW328904 ( unworn / 2025 / box and papers )

IWC - IW328904 · $14,450

Up for sale is an unworn IWC Ingenieur Automatic 40mm Grey Dial Titanium watch, complete with all boxes, papers, and tools.

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

Posted at

Apr 24, 2026, 1:54 PM

Active

View listing on r/WatchExchange

Limited Edition IWC Ingenieur Chronograph Rudolph Caracciola Ref IW380702

IWC - IW380702 · $3,550

A limited edition IWC Ingenieur Chronograph released in 2016 to honor Rudolf Caracciola, featuring a gray sunburst dial with racing red pops and an in-house chronograph caliber 69370 movement.

Condition: Super clean, light wear
Case diameter: 42mm
Movement type: In house automatic chronograph

Posted at

Apr 20, 2026, 9:09 PM

Active

View listing on r/WatchExchange

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

View listing on RolexForums