IWC Ingenieur Ingenieur Perpetual Calendar Digital Date-Month Red Gold / Silver

Reference IW3817-01

IWC Ingenieur Perpetual Calendar Digital Date-Month Red Gold / Silver

About this watch

The IWC IW3817-01 Ingenieur Perpetual Calendar is a masterpiece that embodies functionality and luxury. With its stunning red gold case and silver dial, this timepiece stands out among IWC's esteemed collection. The watch features an automatic mechanical chronograph movement with a perpetual calendar mechanism, allowing you to keep track of date and month in a clear digital format. The open case back provides a glimpse into the intricate workings of the IWC caliber 89800 movement. With its impressive water resistance of up to 120 meters and ergonomic design, this watch is suitable for various occasions. Whether you're at the office or on a yacht, the IW3817-01 fits right in! The watch's limited edition status, with only 100 pieces available, adds to its allure, making it not just a watch but a collector's item. With its advanced features and high-quality materials, this timepiece is an investment piece that reflects the value of IWC's craftsmanship.

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Key Features

Automatic mechanical chronograph movement
Perpetual calendar mechanism
Red gold case with silver dial
Open case back for view of IWC caliber 89800 movement
Impressive water resistance up to 120 meters
Ergonomic design suitable for various occasions
Limited edition status with only 100 pieces available

Specifications

Brand

IWC

Family

Ingenieur

Model

Ingenieur Perpetual Calendar Digital Date-Month Red Gold / Silver

Reference

IW3817-01

Movement

89800

Movement Features

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

Case

Red Gold 45mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

120

Current Listings

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 40 Blue Dial IW328907 + EXTRAS (adjustable clasp, links)

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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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 - 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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