IWC Ingenieur Ingenieur Perpetual Calendar Digital Date-Month Titanium / Slate

Reference IW3818-02

IWC Ingenieur Perpetual Calendar Digital Date-Month Titanium / Slate

About this watch

The IWC IW3818-02 Ingenieur Perpetual Calendar Digital Date-Month Titanium / Slate is a masterpiece of horological excellence. Crafted from lightweight and durable titanium, this watch boasts a commanding presence on the wrist with its 45mm diameter and 17.40mm height. The slate grey color exudes sophistication, while the sapphire glass ensures crystal-clear visibility even after years of wear. With a water resistance of 120 meters, this watch is versatile for any occasion, from formal events to casual outings or swimming. The IWC Caliber 89800 automatic movement boasts 52 jewels and a power reserve of 68 hours, ensuring precision and robustness. The perpetual calendar function automatically adjusts for months with different numbers of days, leap years, and more. This watch is not only a time-telling tool but also a statement piece that embodies the essence of luxury and precision. With its perfect blend of style and functionality, this timepiece is sure to make an impression whether you're in the boardroom or enjoying a weekend getaway.

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Key Features

Limited edition with 100 units produced
Durable titanium construction
Advanced perpetual calendar function
Exceptional chronograph features
Elegant and versatile design
Water resistance up to 120 meters

Specifications

Brand

IWC

Family

Ingenieur

Model

Ingenieur Perpetual Calendar Digital Date-Month Titanium / Slate

Reference

IW3818-02

Movement

89800

Movement Features

Hours, Minutes, Small Seconds
Big Date, Leap Year, Month, Perpetual Calendar, Date
Chronograph, Flyback

Case

45mm

Dial Color

Grey

Crystal

Sapphire

Water Resistance

120

Current Listings

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IWC - IW328907 · $9,300

The IWC Ingenieur Automatic is a 40mm blue dial watch with an IWC 32111 Calibre Movement. It features additional extras such as an adjustable clasp, links, and comes with all original boxes, papers, and warranty.

Condition: Excellent plus
Movement: IWC 32111 Calibre
Accessories: [object Object],[object Object],[object Object]

Posted at

Jan 18, 2026, 5:08 PM

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View listing on r/WatchExchange

IWC Ingenieur Automatic IW357001 $2,650

IWC - IW357001 · $2,650

This previous generation IWC Ingenieur IW3570 is a well-crafted, comfortable, and aesthetically pleasing watch that combines a classic design with modern functionality. It features a date complication and has balanced proportions for comfortable wearability.

Condition: Pre-owned with minor scratches on polished bezel
Case size: 40mm diameter
Movement: IWC Caliber 35111 (Sellita SW300-1a based)
Power reserve: 42 hours

Posted at

Jan 16, 2026, 12:10 PM

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

IWC - IW323902 · $5,475

Condition: Excellent overall condition with only light, honest signs of wear
Size: 40mm diameter
Water Resistance: 30 meters (3 ATM)
Bracelet Links: complete set of links

Posted at

Jan 13, 2026, 5:18 PM

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: 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 - 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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View listing on RolexForums