IWC Ingenieur Ingenieur Constant-Force Tourbillon Red Gold / Ceramic

Reference IW5900-02

About this watch

The IWC IW5900-02 Ingenieur Constant-Force Tourbillon is a masterpiece of horology, seamlessly combining precision engineering with timeless elegance. This statement piece boasts exceptional craftsmanship and design, featuring an innovative constant force mechanism, durable red gold and ceramic materials, and an impressive 96-hour power reserve. With its large size and versatile styling, this watch complements any occasion, from formal events to casual outings. The IWC manufactured 94800 caliber movement is a marvel of watchmaking, boasting a tourbillon escapement and patented constant force mechanism. This timepiece is built to withstand the elements, with water resistance up to 120 meters and sapphire glass protection. Whether you're looking for a conversation starter or a symbol of horological mastery, the IWC IW5900-02 Ingenieur Constant-Force Tourbillon is an investment in craftsmanship, exclusivity, and the story behind the piece.
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Key Features

  • IWC Caliber 94800 movement
  • Red Gold and Ceramic materials
  • Sapphire glass protection
  • Tourbillon escapement
  • Constant force mechanism
  • 96-hour power reserve
  • Water resistance up to 120 meters

Specifications

Brand
IWC
Family
Ingenieur
Model
Ingenieur Constant-Force Tourbillon Red Gold / Ceramic
Reference
IW5900-02
Movement
94800
Movement Features
  • Minutes, Hours, Small Seconds
  • Moonphase
  • Constant Force Mechanism, Tourbillon Escapement, Power Reserve Indicator
Case
46mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
120

Current Listings

[WTS] IWC Ingenieur Automatic 40 Titanium IW328904 — Rhodium Grid Dial — 2025 Full Set

IWC Ingenieur Automatic 40 Titanium IW328904 — Rhodium Grid Dial — 2025 Full Set

IWC - IW328904 · $12,300
This is a 2025 IWC Ingenieur Automatic 40 in Grade 5 titanium, featuring a sand-blasted and polished case, rhodium Grid dial, and integrated titanium bracelet. It has an in-house Calibre 32111 with 120-hour power reserve and anti-magnetic protection.

  • Condition: Excellent
  • Case material: Grade 5 titanium
  • Case dimensions: 40mm x 10.7mm, 45.7mm lug-to-lug
  • Bracelet material: Grade 5 titanium
Posted at
May 16, 2026, 6:27 AM
Active
[WTS] PRICE DROP! IWC Ingenieur Chronograph Limited Racing Edition Ref IW380702

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

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

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
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[WTS] IWC Ingenieur ref. 3305 | Gerald Genta Design

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

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
[WTS] IWC Ingenieur Automatic 40 IW328904 Titanium Complete

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

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
[WTS] 2024 IWC Ingenieur Titanium IW328904 - Full Set with Extended Warranty

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