IWC Ingenieur Ingenieur SL Perpetual Calendar / Strap / English

Reference IW3540-03

IWC Ingenieur SL Perpetual Calendar / Strap / English

About this watch

The IWC IW3540-03 Ingenieur SL Perpetual Calendar is a true horological marvel, combining exquisite craftsmanship with cutting-edge technology. Its unique features and timeless aesthetic make it more than just a timekeeper; it's a statement piece. The watch boasts an elegant yellow gold case, a white dial with stick and dot indexes, and a perpetual calendar complication that accounts for varying month lengths and leap years. At the heart of this masterpiece is the IWC caliber 35782 movement, known for its reliability and precision. With a power reserve of 42 hours and a frequency of 28,800 vibrations per hour, it ensures accurate timekeeping day in and day out. The watch's comfort and style make it ideal for daily wear and special occasions, with a water resistance of 30 meters typical for a dress watch. Whether you're a seasoned collector or a first-time luxury watch buyer, the IW3540-03 is a versatile choice that will serve you well for years to come.

Buy Now on Jomashop

This is an affiliate link

Key Features

Yellow gold case
Perpetual calendar complication
Moonphase indicator
IWC caliber 35782 movement
42-hour power reserve
28,800 vibrations per hour
30-meter water resistance

Specifications

Brand

IWC

Family

Ingenieur

Model

Ingenieur SL Perpetual Calendar / Strap / English

Reference

IW3540-03

Movement

35782

Movement Features

Hours, Minutes, Seconds
Date, Day, Leap Year, Month, Perpetual Calendar, Year Indicator
Moonphase

Case

Yellow Gold 34.5mm

Dial Color

White

Crystal

Sapphire

Water Resistance

Current Listings

PRICE DROP! IWC Ingenieur Chronograph Limited Racing Edition Ref IW380702

IWC - IW380702 · $3,250

This IWC Ingenieur Chronograph Limited Racing Edition features a gray sunburst dial with racing red pops and an in-house automatic chronograph caliber 69370 movement.

Condition: Super clean, light wear as expected
Case size: 42MM
Diameter: 42MM diameter
Movement type: In house automatic chronograph

Posted at

May 12, 2026, 9:44 PM

Active

View listing on r/WatchExchange

IWC Ingenieur Automatic Black Ceramic 42mm IW338903 ( unworn / 2026 / box and papers )

IWC - IW338903 · $19,450

This IWC Ingenieur Automatic is a 42mm black ceramic watch with an automatic movement and comes with all original boxes, papers, and warranty.

Condition: Unworn
Case size: 42mm diameter
Movement: IWC 82110 Calibre Movement

Posted at

May 11, 2026, 12:36 PM

Active

View listing on r/WatchExchange

IWC Ingenieur Automatic 40mm Blue IW328907 ( unworn / 2026 / box and papers )

IWC - IW328907 · $10,250

This IWC Ingenieur Automatic watch features a 40mm stainless steel case and IWC 32111 calibre movement. It comes with a blue dial and is complete with all boxes, papers, and tools.

Condition: unworn
Case material: stainless steel
Movement: IWC 32111 Calibre
Shipping cost international: 150

Posted at

May 11, 2026, 12:21 PM

Active

View listing on r/WatchExchange

IWC Ingenieur ref. 3305 | Gerald Genta Design

IWC - 3305 · $3,500

The IWC Ingenieur ref. 3305 is a refined luxury steel sports watch with a white graph paper dial, designed by Gérald Genta and features a screwed-in bezel and integrated H-link bracelet.

Condition: Very good overall condition
Case Diameter: 34 mm
Case Thickness: 8.8 mm
Dial Type: White Graph Paper Mesh

Posted at

May 10, 2026, 3:40 PM

Active

View listing on r/WatchExchange

IWC Ingenieur Automatic 42 – Full Ceramic – Complete Set Mint Condition – IW338903

IWC - IW338903 · $17,500

The IWC Ingenieur Automatic 42 Ceramic features a full black ceramic case and integrated bracelet, with exceptional scratch resistance and a lightweight design. The textured grid dial, bold indices, and signature bezel design give it a strong, technical presence.

Condition: Mint all around condition
Movement: IWC 82110 automatic in-house movement
Water Resistance: 100m depth rating
Case Size: 42mm diameter

Posted at

May 10, 2026, 1:51 PM

Active

View listing on r/WatchExchange

IWC Ingenieur Automatic 40 IW328904 Titanium Complete

IWC - IW328904 · $14,250

The IWC Ingenieur Automatic 40 IW328904 is a masterclass in engineering-driven design, blending heritage, innovation, and everyday wearability into one of the most compelling modern luxury sports watches on the market. Crafted from lightweight yet highly durable titanium, the 40mm case and integrated bracelet deliver exceptional comfort while maintaining a bold, technical presence on the wrist.

Condition: Mint condition
Material: Titanium
Case size: 40mm diameter
Water resistance: unknown

Posted at

May 9, 2026, 3:01 PM

Active

View listing on r/WatchExchange

IWC Ingenieur Automatic 40mm Titanium IW328904 ( unworn / 2025 / box and papers )

IWC - IW328904 · $14,450

This IWC Ingenieur Automatic 40mm Titanium watch features a grey dial and comes complete with all boxes, papers, booklets, tools, and an IWC Warranty Card. It is in unworn condition.

Condition: Unworn
Case size: 40mm diameter
Movement: IWC Calibre 32111

Posted at

May 6, 2026, 1:17 PM

Active

View listing on r/WatchExchange

2024 IWC Ingenieur Titanium IW328904 - Full Set with Extended Warranty

IWC - IW328904 · $13,299

Condition: Pristine pre-owned condition
Case Size: 40mm diameter
Case Thickness: 10.8mm
Water Resistance: 100m / 330ft depth rating

Posted at

May 6, 2026, 9:24 AM

Active

View listing on r/WatchExchange

IWC Ingenieur Chronograph Limited Edition Rudolph Caracciola Racing Ref IW380702

IWC - IW380702 · $3,350

A limited edition IWC Ingenieur Chronograph in honor of Rudolf Caracciola, featuring a gray sunburst dial and stainless case. It's powered by the in-house chronograph caliber 69370 movement.

Condition: Super clean condition, with light wear as expected
Case size: 42MM
Movement type: In-house automatic chronograph

Posted at

May 5, 2026, 9:38 PM

Active

View listing on r/WatchExchange