IWC Ingenieur Ingenieur 666A Stainless Steel / Ivory
Reference 666A
About this watch
The IWC Ingenieur 666A is a masterpiece of horology that embodies the perfect blend of functionality and style. This robust watch boasts a stainless steel case with a polished finish, striking a balance between presence and wearability. The silver dial features stick hands for clear readability against the silver backdrop. A perpetual calendar module designed by Kurt Klaus ensures accurate date display without manual adjustments. With a water resistance of 120 meters, this watch is suitable for diving enthusiasts and those who enjoy water sports. Its automatic movement maintains precision with minimal deviation, making it an investment in craftsmanship and style.
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Key Features
- IWC caliber 79261 movement
- Perpetual calendar feature by Kurt Klaus
- Stainless steel case with polished finish
- Silver dial with stick hands
- Water resistance up to 120 meters
- Automatic movement with 44-hour power reserve
Specifications
- Brand
- IWC
- Family
- Ingenieur
- Model
- Ingenieur 666A Stainless Steel / Ivory
- Reference
- 666A
- Movement
- iwc-852
- Movement Features
-
- Hours, Minutes, Seconds
- Case
- Stainless Steel 36.5mm
- Dial Color
- Ivory
- Crystal
- Plexi
- Water Resistance
- 100
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