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

Reference IW3505-14

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

About this watch

The IWC Ingenieur SL Automatic is more than just a watch; it's a statement piece that beautifully balances modern and classic elements, making it suitable for both casual and formal occasions. With its yellow gold and stainless steel construction, champagne dial, and unique bracelet, this timepiece captures a nostalgic elegance that many modern watches lack. The combination of materials creates a striking contrast that is both eye-catching and luxurious. The 34mm round case is the perfect size for those who prefer a more classic, understated watch without sacrificing presence. At the heart of the Ingenieur SL Automatic is the IWC Caliber 375 movement, which guarantees accuracy and reliability with a frequency of 28,800 vibrations per hour and 21 jewels. With a power reserve of 42 hours, you can count on this watch to keep ticking even when you take it off for a weekend. The automatic function means that as long as you wear it regularly, you won’t have to worry about winding it manually. One of the standout features of the Ingenieur SL is its impressive water resistance of 120 meters, making it not just a pretty face but also a practical choice for those who enjoy water sports or simply want peace of mind while washing their hands.

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Key Features

IWC Caliber 375 movement
Yellow gold and stainless steel construction
Champagne dial with stick and dot indexes

Specifications

Brand

IWC

Family

Ingenieur

Model

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

Reference

IW3505-14

Movement

375

Movement Features

Hours, Minutes, Seconds
Date

Case

34mm

Crystal

Sapphire

Water Resistance

120

Current Listings

: 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

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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

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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

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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

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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

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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

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IWC Ingenieur blue dial

IWC - Ingenieur · $9,500

A well-maintained IWC Ingenieur with blue dial is available for sale. The watch features a 40mm diameter and comes with box, papers, micro adjust clasp, original butterfly clasp, and extra links.

Condition: Excellent, minor scratches on micro adjust clasp and links
Case Diameter: 40mm
Water Resistance Depth: 100m
Power Reserve Duration: 120 hours

Posted at

Jan 2, 2026, 11:40 AM

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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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