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

Reference IW3505-12

About this watch

The IWC Ingenieur SL Automatic (IW3505-12) is an exquisite timepiece that embodies luxury and functionality. Produced between 1983 and 1990, this watch combines stainless steel and yellow gold for a striking contrast that exudes classic elegance. With its compact size of 34.00 mm and height of just 8.60 mm, the Ingenieur SL is remarkably comfortable on the wrist. The sleek black dial with stick and dot indexes enhances readability while maintaining a minimalist aesthetic. At the heart of this watch is the IWC caliber 375, a self-winding movement that ensures precise timekeeping and reliability. With its impressive water resistance of 120 meters, this watch is suitable for various activities, including swimming or snorkeling. The addition of a date function and comfortable stainless steel bracelet make it a versatile companion for everyday wear. This iconic timepiece showcases IWC's commitment to quality and performance, making it a timeless classic that combines historical significance with modern usability.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Timeless Design
  • Reliable Movement (IWC Caliber 375)
  • Good Water Resistance (120 meters)
  • Comfortable Stainless Steel Bracelet

Specifications

Brand
IWC
Family
Ingenieur
Model
Ingenieur SL Automatic Stainless Steel / Yellow Gold / Black / Bracelet
Reference
IW3505-12
Movement
375
Movement Features
  • Hours, Minutes, Seconds
  • Date
Case
34mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
120

Current Listings

[WTS] IWC Ingenieur Titanium 40mm (2024)

IWC Ingenieur Titanium 40mm (2024)

IWC - IW328904 · $11,500
A IWC Ingenieur Titanium 40mm watch in mint condition, purchased new in 2024 with warranty still active. It features a power reserve of approximately 120 hours and a water resistance of 100M.

  • Condition: Mint condition, one owner
  • Size: 40mm
  • Thickness: 10.8 mm
  • Power reserve: Approximately 120 hrs
Posted at
Jun 13, 2025, 7:27 PM
Active
IWC Ingenieur White Dial IW323906 Automatic Steel 40mm

IWC Ingenieur White Dial IW323906 Automatic Steel 40mm

IWC - IW323906 · $4,420.004
The IWC Ingenieur Automatic 40mm features a white dial and is powered by a mechanical automatic movement. It has a stainless steel case and displays the date.

  • Condition: 95%
  • Case size: 40mm
  • Movement type: Mechanical Automatic
Posted at
Jun 12, 2025, 8:41 AM
Active
IWC Ingenieur Automatic - 40mm - Aqua Dial - IW328903 ( excellent / 2024 )

IWC Ingenieur Automatic - 40mm - Aqua Dial - IW328903 ( excellent / 2024 )

IWC - IW328903 · $8,950.009
Up for sale is an excellent condition IWC Ingenieur Automatic 40mm Aqua Dial reference # IW328903. It comes with all boxes, papers, booklets, tools, and IWC Warranty Card dated April 2024.

  • Condition: Excellent Condition / April 2024
  • Case material: Stainless Steel
  • Movement: IWC 32111 Calibre Movement
  • Case size: 40mm diameter
Posted at
Jun 10, 2025, 3:41 PM
Active
IWC Ingenieur GMT IW324404 Automatic Steel 43mm

IWC Ingenieur GMT IW324404 Automatic Steel 43mm

IWC - IW324404 · $3,770.004
The IWC Ingenieur GMT is a white dial watch featuring a mechanical automatic movement and date/GMT function, housed in a stainless steel case with a size of 43mm.

  • Condition: 95%
  • Case material: Stainless Steel
  • Movement type: Mechanical Automatic
Posted at
Jun 10, 2025, 8:47 AM
Active
IWC Ingenieur White Dial IW323906 Automatic Steel 40mm

IWC Ingenieur White Dial IW323906 Automatic Steel 40mm

IWC - IW323906 · $4,420.004
This IWC Ingenieur White Dial IW323906 is a 40mm automatic steel watch with date function. It features a stainless steel case and mechanical automatic movement.

  • Condition: 90%
  • Case size: 40mm diameter
  • Case material: Stainless Steel
Posted at
Jun 7, 2025, 1:53 PM
Active
IWC Ingenieur IW323902 – Full Kit + OEM Rubber Strap + Fresh IWC Service

IWC Ingenieur IW323902 – Full Kit + OEM Rubber Strap + Fresh IWC Service

IWC - IW323902 · $6,500.007
The IWC Ingenieur Automatic is a refined and robust timepiece that pays homage to the classic Genta design. It features a sleek 39mm stainless steel case, black dial with luminous markers and hands, and a soft-iron inner cage for anti-magnetic properties.

  • Condition: Excellent overall
  • Case Size: 39mm
  • Water Resistance: 120m / 12 bar
  • Movement Type: IWC Caliber 30110 (ETA 2892-A2 base)
Posted at
Jun 7, 2025, 12:20 PM
Active
[WTS] IWC Ingenieur Titanium 40mm (2024)

IWC Ingenieur Titanium 40mm (2024)

IWC - IW328904 · $11,500
Up for sale is a IWC Ingenieur Titanium 40mm (2024), a watch with a 40mm diameter, 10.8mm thickness, and various features such as a power reserve of approximately 120 hours and water resistance of 100 meters.

  • Condition: mint condition
  • Size: 40mm diameter
  • Thickness: 10.8 mm
  • Power reserve: 120 hours
Posted at
Jun 6, 2025, 4:52 PM
Active
2024 IWC Ingenieur Automatic 40mm Titanium IW328904 Full Set

2024 IWC Ingenieur Automatic 40mm Titanium IW328904 Full Set

IWC - IW328904 · $11,950.001
This is a 2024 IWC Ingenieur Automatic watch with a 40mm titanium case. It comes in its original inner and outer box set, including a sleeve, fully linked booklet, warranty card dated March 25th, 2024, and polish cloth.

  • Condition: Pre-owned, excellent condition with minor wear from being worn a handful of times
  • Case material: titanium
  • Case size: 40mm
  • Movement type: automatic
Posted at
Jun 5, 2025, 10:05 PM
Active
[WTS] 2024 IWC Ingenieur Automatic 40mm IW328903 Stainless Steel Aqua Dial - $8,500

2024 IWC Ingenieur Automatic 40mm IW328903 Stainless Steel Aqua Dial - $8,500

IWC - IW328903 · $8,500
2024 IWC Ingenieur Automatic 40mm stainless steel watch with an Aqua dial.

  • Material: stainless steel
Posted at
Jun 5, 2025, 9:59 AM
Active