IWC Ingenieur Big Ingenieur Black / Alligator

Reference IW5005-01

About this watch

The IWC IW5005-01 Big Ingenieur Black / Alligator is a masterpiece of horological engineering, boasting a 45.50 mm stainless steel case that exudes elegance and sophistication. The striking black dial features stick and dot indexes, while the sleek hands ensure focus remains on the time, date, and power reserve indicator. Powered by the IWC caliber 51113 automatic movement, this watch showcases precision and durability with a 168-hour power reserve. The sapphire glass is scratch-resistant, and the open case back adds transparency to the intricate movement within. This luxury statement piece is suitable for formal occasions and casual outings alike, thanks to its balanced design and alligator leather strap. Whether you're seeking an investment or simply want a beautiful timepiece, this watch checks all the boxes.

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Key Features

45.50 mm stainless steel case
IWC caliber 51113 automatic movement
168-hour power reserve
Scratch-resistant sapphire glass
120 meters water resistance
Alligator leather strap
Open case back

Specifications

Brand

IWC

Family

Ingenieur

Model

Big Ingenieur Black / Alligator

Reference

IW5005-01

Movement

51113

Movement Features

Hours, Minutes, Seconds
Date
Power Reserve Indicator

Case

Stainless Steel 45.5mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

120

Current Listings

BNIB IWC Ingenieur 40 Steel Blue - Never Worn, Brand New from AD (Jul-2025) with all Boxes/Papers/Warranty

IWC - Ingenieur 40 Steel Blue · $12,000

A re-introduction of one of Genta's big three integrated bracelet steel sports watch designs, the IWC Ingenieur 40 features a stunning steel blue dial in a checkerboard pattern and a fully tool-less design.

Condition: Brand New, Never Worn
Purchase date: July 2025
From ad: Yes, bought from Authorized Dealer

Posted at

Feb 1, 2026, 1:08 PM

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IWC Ingenieur IW323902

IWC - IW323902 · $4,999

A IWC Ingenieur IW323902 second owner's watch, featuring a 40mm case diameter with a 42hr power reserve and 100m water resistance.

Condition: Excellent preowned condition
Case diameter: 40mm
Thickness: 10mm
Movement: IWC 30110 automatic

Posted at

Jan 31, 2026, 5:03 PM

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IWC Ingenieur Automatic 40 Full Steel Black Dial 2017 (Full-Set/Unpolished)

IWC - IW323902 · $5,475

This IWC Ingenieur Automatic 40 is a modern classic with a clean and well-preserved black dial, strong legibility, and technical aesthetic. The stainless steel case shows light signs of wear while maintaining its original factory finish and proportions.

Condition: Excellent overall condition, light signs of wear on the case
Size: 40mm diameter
Year: 2017
Water Resistance: 30m depth rating

Posted at

Jan 29, 2026, 4:58 PM

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IWC Ingenieur Blue Dial Automatic 40 | IW328907 | 2025 | Full Set | Factory Warranty Until 2033

IWC - IW328907 · $9,850

The IWC Ingenieur Automatic 40 is a modern reinterpretation of one of IWC’s most iconic integrated-bracelet sports watches, originally designed in the 1970s by Gérald Genta. It preserves the bold industrial character of the original SL design while refining every proportion for contemporary wearability and precision finishing.

Condition: Excellent with minor hairlines
Case size: 40mm diameter
Water resistance: 100m depth rating
Power reserve: 120-hour power reserve

Posted at

Jan 28, 2026, 12:03 AM

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: IWC Micro Adjust Clasp for Ingenieur 40 and MK XX

IWC · $375

A preowned IWC microadjust clasp in excellent condition for sale.

Condition: preowned, excellent
Compatible Models: IWC Ingenieur 40 (IW32890x), MK XX
Price From Msrp: $460

Posted at

Jan 22, 2026, 6:56 PM

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IWC Ingenieur Automatic 40 Full Steel Black Dial 2017 (Full-Set/Unpolished)

IWC - IW323902 · $5,475

This IWC Ingénieur Ref. IW323902 is a modern classic offered in never polished stainless steel, featuring a black dial and technical aesthetic.

Condition: Excellent overall condition
Case material: Stainless steel
Bracelet type: Stainless steel bracelet
Bracelet links: All links included

Posted at

Jan 22, 2026, 10:19 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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IWC Ingenieur Automatic - 40mm - Black Dial - IW328901 ( unworn / 2025 )

IWC - IW328901 · $9,995

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

Posted at

Mar 28, 2025, 3:41 PM

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1980's IWC Ingenieur Ref. IW3506 with Box

IWC - IW3506 · $5,950

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

Posted at

Mar 27, 2025, 1:34 PM

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