IWC Portuguese
IW390403
2-year warranty, extendable to 8 years. Register here
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Brand IWCCollectionPortugueseSeriesChronograph ClassicModel NoIW390403
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MovementFeatures Chronograph, DateMovement AutomaticCalibre 89361CaseCase Size 42 mmCase Shape RoundCase Material SteelCase Back See-through Case BackGlass Material Sapphire CrystalDialDial Colour WhiteHands FeuilleIndexes Arabic NumeralsStrapStrap Material LeatherOtherGender MenWater Resistance (M) 30Warranty Period 2-year warranty, extendable to 8 years. Register hereCountry of Origin Switzerland
About the IWC Portuguese Collection
Features
The late 1930s was a pioneer calendar year for the IWC Portugieser watch collection. When two Portuguese businessmen ordered wristwatches with the precision of marine chronometers, IWC Schaffhausen decided to rise up to the challenge by creating a then non-existent wristwatch movement with the crown on the right-hand side which would remedy the problem. The Portugieser is a much sought after watch due to its minimalist design and simplistic approach to styling. Most watches consist of an automatic movement while others, in accordance to the pioneer pocket watch models before, require mechanical hand winding.
Events
2015 marks the 75th anniversary of the IWC Schaffhausen Portugieser family, one of the most beloved and prestigious collection of the brand. This year was kick-started with a number of gala affairs in January, the most elaborate of which saw 800 distinguished guests and IWC Schaffhausen at the Salon International de la Haute Horlogerie in Geneva. The evening was star-studded with watch enthusiasts and brand ambassadors. Over the past few years, IWC has continually bested its contemporaries by decorating the Portugieser with modernist technology such as the Tourbillon Mystere, the constant force Tourbillon and the 8-day hand wound movement with definitive plans to bring design and efficiency to new heights over the coming years.
Associations
English Actress Emily Blunt shares a love for the Portugieser watches that is very much in common with famous Austrian actor, Christopher Waltz. Friends of the brand also include screenwriter and filmmaker Mark Forster, sports legends such as Lewis Hamilton, Nico Roseberg and Luis Figo, all of whom have dedicatedly attended the launches of the new and improved Portugieser watch collection.

ABOUT THE MOVEMENT
The IWC calibre 89361 is a self-winding chronograph movement based on the IWC 89360 calibre. This automatic movement integrates advanced chronograph functionality with a practical date display. A standout feature is the combined hour and minute totaliser located at 12 o’clock, offering a streamlined and intuitive way to read elapsed time, eliminating the need for multiple sub-dials. The movement incorporates a flyback chronograph mechanism, allowing the chronograph hand to reset and restart instantly with a single push, a practical feature for precise timekeeping during consecutive timing events. Operating at a frequency of 28,800 vibrations per hour (4 Hz), the 89361 calibre ensures reliable accuracy, while its robust 68-hour power reserve provides extended autonomy. Crafted with 299 individual components and 38 jewels, the movement is adorned with Côtes de Genève finishing, reflecting IWC’s commitment to aesthetic refinement and mechanical excellence. The hands display hours, minutes, and a small seconds function, further enhancing its versatility.

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- Brand IWC
- Reference 89361
- Movement Automatic
- Display Analog
- Power Reserve approx. 68 hours
- Frequency 28800 bph
- Date Date
- Chronograph Chronograph, Flyback
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