IWC Ingenieur Ingenieur SL Perpetual Calendar / Strap / English
Reference IW3540-03
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.
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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
- 30
Current Listings
![[WTS]: IWC Ingenieur 40 Blue Dial IW328907 + EXTRAS (adjustable clasp, links)](https://preview.redd.it/oyrxi37il6eg1.jpg?width=640&crop=smart&auto=webp&s=429de66fbe9fe3396f02b87c51fec02d113512f9)
: IWC Ingenieur 40 Blue Dial IW328907 + EXTRAS (adjustable clasp, links)
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]
![[WTS] IWC Ingenieur Automatic IW357001 $2,650](https://preview.redd.it/sqxma7jiuqdg1.jpeg?auto=webp&s=dac7a7c80da8bac11e3c4710a71753503ad3af3f)
IWC Ingenieur Automatic 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
![[WTS] IWC Ingenieur Automatic 40 Full Steel Black Dial 2017 (Full-Set/Unpolished)](https://preview.redd.it/a1xvysfqy6dg1.jpg?width=640&crop=smart&auto=webp&s=76a78581023770add7c172502c699d33848fc042)
IWC Ingenieur Automatic 40 Full Steel Black Dial 2017 (Full-Set/Unpolished)
- 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
![[WTS]: IWC Ingenieur 40 Blue Dial IW328907 + EXTRAS (adjustable clasp, links)](https://preview.redd.it/y5gi81t4mrcg1.jpg?width=640&crop=smart&auto=webp&s=3f289be40a8d0239c4f8aa2f518005b5ec338c27)
: IWC Ingenieur 40 Blue Dial IW328907 + EXTRAS (adjustable clasp, links)
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
![[WTS] IWC Ingenieur 40 Homage](https://preview.redd.it/2qldu6rppdcg1.jpg?width=640&crop=smart&auto=webp&s=6fdc1eb4a61fdcea842b1b74b7b42771e605d242)
IWC Ingenieur 40 Homage
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
![[WTS] IWC Ingenieur Automatic 40 IW328903 Steel Green Grid Dial Box Papers 2025](https://preview.redd.it/w6ppgqmwq4cg1.jpg?width=640&crop=smart&auto=webp&s=39687a5ed0a203d8a2e80cc64a443f49dd44531f)
IWC Ingenieur Automatic 40 IW328903 Steel Green Grid Dial Box Papers 2025
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
![[WTS] IWC Ingenieur 3521 Fullset - $7500](https://preview.redd.it/ebpv96u7t3cg1.jpg?width=640&crop=smart&auto=webp&s=50b3a870958d70b687adccd7800fe01619a428ad)
IWC Ingenieur 3521 Fullset - $7500
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
IWC Ingenieur Automatic - IW323902 - Black - Stainless Steel - 39mm - Mint
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
IWC Ingenieur Automatic - 40mm - Black Dial - IW328901 ( unworn / 2025 )
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