IWC Portugieser Portuguese Yacht Club Chronograph 43.5 Boesch

Reference IW3905-04

About this watch

The IWC Portuguese Yacht Club Chronograph 43.5 Boesch is a masterpiece of horology, blending stunning design with advanced technology and embodying the spirit of nautical adventure. This limited-edition timepiece, released in 2016 and limited to just 150 units, tells a story of excellence and craftsmanship. With its classic yet sporty aesthetic, it's versatile enough for both formal and casual settings. The brown color scheme paired with the stainless steel case creates a sophisticated yet sporty look. The polished finish adds a touch of elegance, making it suitable for a yacht club dinner or a casual outing. At the heart of this watch lies the IWC caliber 89361, a self-winding flyback chronograph movement boasting a 68-hour power reserve and rapid timing sequences. The sapphire crystal offers scratch-resistance and durability, while the sturdy stainless steel case protects the movement from shocks and impacts. Comfort is key, with an adjustable leather strap that complements its overall aesthetic. This watch is perfect for anyone who enjoys the finer things in life, particularly those with a passion for sailing or nautical activities.
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Key Features

  • 43.5mm Round Stainless Steel Case
  • Sapphire Crystal Scratch-Resistant and Durable
  • IWC Caliber 89361 Self-Winding Flyback Chronograph Movement
  • 68-Hour Power Reserve and Rapid Timing Sequences
  • Water Resistance up to 60 meters
  • Brown Color Scheme with Polished Finish
  • Adjustable Leather Strap

Specifications

Brand
IWC
Family
Portugieser
Model
Portuguese Yacht Club Chronograph 43.5 Boesch
Reference
IW3905-04
Movement
89361
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph, Flyback
Case
Stainless Steel 43.5mm
Dial Color
Brown
Crystal
Sapphire
Water Resistance
60

Current Listings

[WTS] IWC Portugieser Chronograph IW371616

IWC Portugieser Chronograph IW371616

IWC - IW371616 · $7,100
For sale is a IWC Portugieser Chronograph IW371616 in excellent condition, featuring a red / burgundy sunburst dial. This watch is part of the modern Portugieser Chronograph lineup from IWC Schaffhausen and has a slim profile, balanced dial layout, and signature feuille hands.

  • Condition: Excellent
  • Case material: Stainless steel
  • Case size: 41mm
  • Dial color: Burgundy sunburst
Posted at
May 9, 2026, 2:06 PM
Active
[WTS] 2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995

2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995

IWC - IW371615 · $5,995
This is a 2022 IWC Portugieser Chronograph Green, a 41mm watch with chronograph functionality.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 41mm diameter
  • Water resistance: 30m depth rating
Posted at
May 9, 2026, 11:22 AM
Active
[WTS][US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

[US] IWC Portugieser Automatic 40 - Silver Dial - 40mm - IW358312 - BRAND NEW

IWC - IW358312 · $6,950
This IWC Portugieser Automatic 40 features a silver dial and 40mm case. It is fully mechanical with no issues and includes various accessories.

  • Condition: Brand new, unworn
  • Case size: 40mm
  • Movement type: Automatic
Posted at
May 9, 2026, 7:23 AM
Active
[WTS] 2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995

2022 IWC Portugieser Chronograph Green IW371615 41mm Full Set - $5,995

IWC - IW371615 · $5,995
This 2022 IWC Portugieser Chronograph Green features a 41mm case and is in excellent condition. It has been thoroughly tested on a timegrapher and is running well.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Case Size: 41mm diameter
  • Contents: Watch, Box, Travel Case, International Warranty Card, Instructions Manual
Posted at
May 7, 2026, 11:51 AM
Active
IWC Portugieser Chronograph - 41mm - Gold Numerals - IW371604 ( new / 2024 )

IWC Portugieser Chronograph - 41mm - Gold Numerals - IW371604 ( new / 2024 )

IWC - IW371604 · $6,995
This IWC Portugieser Chronograph features a stainless steel case and gold numerals. It comes with all the original boxes, papers, booklets, and IWC Warranty Card.

  • Condition: unworn
  • Case size: 41mm diameter
  • Movement: In-House Calibre 69355
Posted at
Apr 2, 2025, 3:10 PM
Active
2023 IWC Portugieser 42 / IW500715

2023 IWC Portugieser 42 / IW500715

IWC - IW500715 · $8,675
2023 IWC Portugieser 42, a luxury watch in excellent condition with original boxes and papers. Comes with warranty card.

  • Condition: Very Good Condition
  • Boxes: Yes, complete set
  • Papers: Complete
  • Warranty: With warranty card
Posted at
Apr 1, 2025, 10:21 PM
Active
Iwc iw500701 portugieser 7 day power reserve rose gold watch

Iwc iw500701 portugieser 7 day power reserve rose gold watch

IWC - IW500701 · $12,995
This IWC PORTUGIESER model IW500701 features a 7 day power reserve and comes in 18K Rose gold on a leather band with deployment buckle.

  • Band material: leather
  • Case material: 18K Rose gold
Posted at
Mar 25, 2025, 10:07 PM
Active
IWC Portugieser Portugieser F.A. Jones in Rose Gold 5442-01 Limited Edition

IWC Portugieser Portugieser F.A. Jones in Rose Gold 5442-01 Limited Edition

IWC - IW544201 · $10,140
This is a limited edition IWC Portugieser F.A. Jones watch in rose gold, featuring mechanical manual movement and measuring 43mm in size.

  • Condition: 90%
  • Size: 43mm diameter
  • Case material: 18K Rose Gold
  • Limited edition: 1000 pieces
Posted at
Mar 7, 2025, 10:20 AM
Active
Reduced! IWC Portugieser Chronograph - 18k Rose Gold

Reduced! IWC Portugieser Chronograph - 18k Rose Gold

IWC - 3714-02 · $7,500
The IWC Portugieser Chronograph is an icon of watchmaking. This timeless design, with its perfect proportions and understated elegance, has captivated collectors worldwide.

  • Condition: Excellent
  • Case material: 18k solid rose gold
  • Bracelet type: Original IWC Leather Strap
Posted at
Mar 1, 2025, 9:09 PM
Active