IWC Ingenieur Ingenieur SL Automatic Stainless Steel / Yellow Gold / Champagne / Bracelet
Reference IW3505-14
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 Automatic - 40mm - Titanium - IW328904 ( unworn / 2025 )
This listing is for an unworn IWC Ingenieur Automatic 40mm Grey Dial Titanium watch, complete with all original packaging and documentation.
- Condition: Unworn
- Case material: Titanium
- Movement: IWC 32111 Calibre
- Diameter: 40mm
IWC Ingenieur Black Dial IW322701 Automatic 42mm
This IWC Ingenieur Black Dial IW322701 Automatic is a 42.5mm mechanical automatic watch with date function and stainless steel case.
- Condition: 90%
- Case size: 42.5mm diameter
- Movement: Mechanical Automatic (80110)
- Case material: Stainless Steel
IWC INGENIEUR IW451501 Mid-size 34mm Stainless Steel
The IWC Ingenieur Mid Size is a mechanical automatic watch with date function and stainless steel case. It measures 34mm in size, making it a compact and stylish timepiece.
- Condition: 90%
- Case material: Stainless Steel
- Movement type: Mechanical Automatic
- Size description: 34mm diameter
IWC Ingenieur Automatic - IW323902 - Black - Stainless Steel - 39mm - Mint
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

IWC Ingenieur Automatic - 40mm - Black Dial - IW328901 ( unworn / 2025 )
This IWC Ingenieur Automatic watch features a 40mm stainless steel case and black dial, coming with all original boxes and papers.
- Condition: unworn
- Case size: 40mm diameter
- Movement: IWC 32111 Calibre

1980's IWC Ingenieur Ref. IW3506 with Box
The IWC Ingenieur Ref. IW3506 is a vintage watch originally launched in 1955 as an anti-magnetic timepiece for engineers, featuring a soft iron inner case and IWC's Caliber 852. The Reference 3506 was introduced in the mid-1980s, offering a more wearable size with refined details like gold hour markers and a graph paper textured dial.
- Condition: Vintage-Good
- Movement: Automatic
- Case Width: 35mm diameter
- Strap Length: 7.50 inches
IWC Ingenieur Aqua Green IW328903 LNIB
A pristine IWC Ingenieur with an Aqua Green dial, complete with warranty card and other original accessories.
- Condition: Like New in Box (LNIB)
- Year: 2024
- Warranty card: present

BNIB IWC IW328904 Ingenieur TITANIUM 40 NEW MODEL Grey Dial 2025
This is a brand new IWC Ingenieur model with a grey dial and titanium case. It comes in full box/papers and has the remaining manufacturer warranty.
- Condition: Brand new, unworn
- Material: Titanium
- Case size: 40mm diameter

IWC Ingenieur Automatic - 40mm - Aqua Dial - IW328903 ( excellent / 2025 )
A 40mm stainless steel IWC Ingenieur Automatic with an Aqua Dial and IWC 32111 Calibre Movement, coming with a complete set including boxes, papers, booklets, tools, hang tag, and IWC Warranty Card.
- Condition: Excellent
- Case size: 40mm
- Movement: IWC 32111 Calibre