Portuguese Family

Portuguese Chronograph Classic

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reference 3904

The IWC-manufactured 89361 calibre displays stopped times up to 12 hours in a subdial where they can be read off as simply as the time of day. The arched-edge front glass and the railway-track-style chapter ring give the design a classic balance. Available in 18-carat red gold or stainless steel with an alligator leather Santoni strap.

Highlights

  • Mechanical chronograph movement
  • Self-winding
  • 68-hour power reserve
  • Hour and minute counters combined in a totalizer
  • Flyback function
  • Diameter 42 mm

Price: $13,000 — $24,200

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A REINTERPRETATION OF A CLASSIC TIMEPIECE

You could call this chronograph in the Portuguese family the big brother of the Reference 3714. The model is slightly larger in diameter and 2 millimetres higher, although the latter makes little difference optically because of the arched-edge front glass. This traditional type of glass gives the design a classic balance that is enhanced by the railway-track-style chapter ring, which also gave the original Portuguese its distinctive appearance. The Portuguese Chronograph Classic is equipped with the IWC-manufactured 89361 calibre. The movement was developed specially to show stopped times up to 12 hours on a separate subdial, which can be read off like the time of day. The Reference 3904 is available in 18-carat red gold or stainless steel with either a silver-plated or slate-coloured dial. The rotor, decorated with Geneva stripes, can be seen through the transparent sapphire-glass back. All models are supplied with a Santoni strap made of alligator leather.

Variations

Details

  • Reference IW390402
  • Case Material 18-carat red gold
  • Bracelet/Strap dark brown alligator leather
  • Dial Colour silver-plated
  • Jewels 38
  • Calibre 89361
  • Price $24,200
  • Mechanical chronograph movement
  • Self-winding
  • IWC-manufactured 89361 calibre (89000-calibre family)
  • 68-hour power reserve when fully wound
  • Date display
  • Stopwatch function with hours, minutes and seconds
  • Hour and minute counters combined in a totalizer at 12 o’clock
  • Flyback function
  • Small hacking seconds
  • Sapphire glass, arched edge, antireflective coating on both sides
  • See-through sapphire-glass back
  • Water-resistant 3 bar
  • Case height 14.5 mm
  • Diameter 42 mm
  • Alligator leather strap by Santoni
  • Reference IW390405
  • Case Material 18-carat red gold
  • Bracelet/Strap black alligator leather
  • Dial Colour ardoise
  • Jewels 38
  • Calibre 89361
  • Price $24,200
  • Mechanical chronograph movement
  • Self-winding
  • IWC-manufactured 89361 calibre (89000-calibre family)
  • 68-hour power reserve when fully wound
  • Date display
  • Stopwatch function with hours, minutes and seconds
  • Hour and minute counters combined in a totalizer at 12 o’clock
  • Flyback function
  • Small hacking seconds
  • Sapphire glass, arched edge, antireflective coating on both sides
  • See-through sapphire-glass back
  • Water-resistant 3 bar
  • Case height 14.5 mm
  • Diameter 42 mm
  • Alligator leather strap by Santoni
  • Reference IW390404
  • Case Material stainless steel
  • Bracelet/Strap black alligator leather
  • Dial Colour ardoise
  • Jewels 38
  • Calibre 89361
  • Price $13,000
  • Mechanical chronograph movement
  • Self-winding
  • IWC-manufactured 89361 calibre (89000-calibre family)
  • 68-hour power reserve when fully wound
  • Date display
  • Stopwatch function with hours, minutes and seconds
  • Hour and minute counters combined in a totalizer at 12 o’clock
  • Flyback function
  • Small hacking seconds
  • Sapphire glass, arched edge, antireflective coating on both sides
  • See-through sapphire-glass back
  • Water-resistant 3 bar
  • Case height 14.5 mm
  • Diameter 42 mm
  • Alligator leather strap by Santoni
  • Reference IW390403
  • Case Material stainless steel
  • Bracelet/Strap black alligator leather
  • Dial Colour silver-plated
  • Jewels 38
  • Calibre 89361
  • Price $13,000
  • Mechanical chronograph movement
  • Self-winding
  • IWC-manufactured 89361 calibre (89000-calibre family)
  • 68-hour power reserve when fully wound
  • Date display
  • Stopwatch function with hours, minutes and seconds
  • Hour and minute counters combined in a totalizer at 12 o’clock
  • Flyback function
  • Small hacking seconds
  • Sapphire glass, arched edge, antireflective coating on both sides
  • See-through sapphire-glass back
  • Water-resistant 3 bar
  • Case height 14.5 mm
  • Diameter 42 mm
  • Alligator leather strap by Santoni

Watch Viewer

  • IW390402 Watch Front
  • IW390402 Watch Back
  • IW390405 Watch Front
  • IW390405 Watch Back
  • IW390404 Watch Front
  • IW390403 Watch Front

Enlarge

The 89000-Calibre Family

Designed and manufactured completely by IWC in Schaffhausen, the 89360-calibre chronograph movement and its successor, the 89361, feature a significantly improved self-winding system and set new watchmaking standards. The design, which occupied an IWC development team for a full 4 years, was necessitated by a revolutionary chronograph display that enables the user to read off even relatively long periods of stopped times – 8 hours and 52 minutes, for example – at a glance: a circular totalizer combines the hour and minute hands as if they were a watch-within-a-watch. In 2012, it was joined by the newly developed 89365 chronograph movement including a stopwatch function with minutes and seconds as well as a flyback function. After further development, the IWC-manufactured movement was known as the 89800 calibre and used for the big digital date and month displays in References 3761 and 3791. The new Ingenieur Perpetual Calendar Digital Date-Month comes equipped with a further development on the theme, the 89802 calibre.

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