The Basics

The Portugieser Perpetual Calendar Digital Date-Month Edition “75th Anniversary” is one of IWC’s most outstanding technological advances. The Portugieser (Portuguese) watch family now includes a model featuring a digital display for the date and month. Features include the perpetual calendar, digital large date display, leap year display, chronograph with flyback functions and the 89801 calibre with its efficient double-pawl winding mechanism and quick-action switch. The Red Gold / Silver digital perpetual calendar is limited to 75 pieces.

Brand: IWC
Family: Portugieser
Reference: IW3972-03 (aka: IW397203)
Name: Portugieser Perpetual Calendar Digital Date-Month Edition “75th Anniversary” Red Gold / Silver
Produced: 2015
Limited: Yes, 75 units

Below is a detailed look at IWC’s model IW3972-03 from Portugieser watch family, including the price, case details and movement features.

IWC Portugieser IW3972-03

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The Details

IWC’s Portugieser Perpetual Calendar Digital Date-Month Edition “75th Anniversary” Red Gold / Silver (IW3972-03 (aka: IW397203)) was originally released in 2015. This watch features a automatic movement beating at a frequency of 28800 bph ( 4 Hz) to provide a 68-hour power reserve when fully wound.

The Case

The red gold case measures 45mm in diameter and roughly 16.5mm thick, with 22mm lug width. The round case is paired with a silver color dial with feuille-shaped hands, and a arabic numerals hour markers and minute track, covered by a sapphire glass. IWC’s Portugieser model IW3972-03 is water resistant up to 30 meters (98 ft). A display caseback is over the back of the watch case.

Material: Red Gold
Glass: Sapphire
Back: Display
Shape: Round
Diameter: 45mm
Height: 16.5mm
Lug Width: 22mm
W/R: 30

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Portugieser IW3972-03 movement is a powered by caliber 89801 made by IWC. The 51-jewel automatic movement is 30mm in diameter. Its balance wheel oscillates at 28,800 semi-oscillations per hour or 4 Hz. This movement offers a 68-hour power reserve.

Type: Automatic
Brand: IWC
Caliber: 89801
Base: N/A
Display: Analog
Diameter: 30mm
Jewels: 51
Reserve: 68 hours
Frequency: 28800 bph
Time: Hours, Minutes, Small Seconds
Chronograph: Chronograph, Flyback
Additionals:

The Price

How much does the IWC’s Portugieser IW3972-03 cost? This watch was introduced in 2015 and has been in IWC’s collection for around . This watch is a limited edition with just 75 pieces released. As with most luxury watches, the price of depends on the availability and demand.

CURRENT PRICE: $50,600

For more information, visit IWC online.

Specifications:

  • Brand: IWC
  • Model: Portugieser Perpetual Calendar Digital Date-Month Edition “75th Anniversary” Red Gold / Silver
  • Reference Number: IW3972-03 (aka: IW397203)
  • Limited: Yes, 75 units

Case & Dial:

  • Material: Red Gold
  • Glass: Sapphire
  • Back: Display
  • Diameter: 45
  • Thickness: 16.5
  • Lug Width: 22
  • Dial Color: Silver
  • Indexes: Arabic Numerals and Feuille-shaped hands
  • Water Resistance: 30 meters

Movement:

  • Winding: Automatic
  • Brand: IWC
  • Caliber: 89801
  • Display: Analog
  • Diameter: 30mm
  • Jewels: 51
  • Power Reserve: 68 hours
  • Frequency: 28800 bph
  • Functions: Hours, Minutes, Small Seconds

About IWC

IWC logo

IWC is based in Schaffhausen, Switzerland, and was founded in 1868. Its signature lines are the Pilot’s Watches and the Portugieser, while other famous collections are the Aquatimer, Portofino and the Da Vinci. Many of IWC’s designs display a industrial type of beauty not often found in Swiss watchmaking. The same goes for its movements; while of very high standards, they are finished with an … engineers touch rather than that of an artist. One could very well say that IWC’s approach to watchmaking is more German in nature compared to many of its competitors; the ‘form follows function’ adagio is one held in high esteem in Schaffhausen. Notable watches and innovations created by IWC in the past include the digital ‘Pallweber’ pocket watch, the late 1930’s Portugieser, the 1985 Da Vinci with Kurt Klaus perpetual module, the split-seconds mechanism as designed by Richard Habring and the ceramic Da Vinci and Flieger 3705 – introduced many years before the material became fashionable. IWC also pioneered the use of titanium in wristwatches. In recent years, IWC has had a strong focus on in-house movements with prices rising accordingly. IWC is part of the Richemont group.

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